for Journals by Title or ISSN
for Articles by Keywords
help
  Subjects -> CHEMISTRY (Total: 848 journals)
    - ANALYTICAL CHEMISTRY (47 journals)
    - CHEMISTRY (602 journals)
    - CRYSTALLOGRAPHY (22 journals)
    - ELECTROCHEMISTRY (26 journals)
    - INORGANIC CHEMISTRY (41 journals)
    - ORGANIC CHEMISTRY (45 journals)
    - PHYSICAL CHEMISTRY (65 journals)

CHEMISTRY (602 journals)                  1 2 3 4 | Last

Showing 1 - 200 of 735 Journals sorted alphabetically
2D Materials     Hybrid Journal   (Followers: 5)
Accreditation and Quality Assurance: Journal for Quality, Comparability and Reliability in Chemical Measurement     Hybrid Journal   (Followers: 25)
ACS Catalysis     Full-text available via subscription   (Followers: 26)
ACS Chemical Neuroscience     Full-text available via subscription   (Followers: 15)
ACS Combinatorial Science     Full-text available via subscription   (Followers: 23)
ACS Macro Letters     Full-text available via subscription   (Followers: 20)
ACS Medicinal Chemistry Letters     Full-text available via subscription   (Followers: 33)
ACS Nano     Full-text available via subscription   (Followers: 166)
ACS Photonics     Full-text available via subscription   (Followers: 6)
ACS Synthetic Biology     Full-text available via subscription   (Followers: 16)
Acta Chemica Iasi     Open Access  
Acta Chimica Sinica     Full-text available via subscription  
Acta Chimica Slovaca     Open Access   (Followers: 1)
Acta Chromatographica     Full-text available via subscription   (Followers: 8)
Acta Facultatis Medicae Naissensis     Open Access  
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 5)
Acta Scientifica Naturalis     Open Access  
adhäsion KLEBEN & DICHTEN     Hybrid Journal   (Followers: 5)
Adhesion Adhesives & Sealants     Hybrid Journal   (Followers: 6)
Adsorption Science & Technology     Full-text available via subscription   (Followers: 4)
Advanced Functional Materials     Hybrid Journal   (Followers: 43)
Advanced Science Focus     Free   (Followers: 3)
Advances in Chemical Engineering and Science     Open Access   (Followers: 50)
Advances in Chemical Science     Open Access   (Followers: 11)
Advances in Chemistry     Open Access   (Followers: 9)
Advances in Colloid and Interface Science     Full-text available via subscription   (Followers: 14)
Advances in Drug Research     Full-text available via subscription   (Followers: 21)
Advances in Enzyme Research     Open Access   (Followers: 4)
Advances in Fluorine Science     Full-text available via subscription   (Followers: 8)
Advances in Fuel Cells     Full-text available via subscription   (Followers: 12)
Advances in Heterocyclic Chemistry     Full-text available via subscription   (Followers: 8)
Advances in Materials Physics and Chemistry     Open Access   (Followers: 15)
Advances in Nanoparticles     Open Access   (Followers: 12)
Advances in Organometallic Chemistry     Full-text available via subscription   (Followers: 14)
Advances in Polymer Science     Hybrid Journal   (Followers: 37)
Advances in Protein Chemistry     Full-text available via subscription   (Followers: 13)
Advances in Protein Chemistry and Structural Biology     Full-text available via subscription   (Followers: 13)
Advances in Quantum Chemistry     Full-text available via subscription   (Followers: 5)
Advances in Science and Technology     Full-text available via subscription   (Followers: 5)
African Journal of Bacteriology Research     Open Access  
African Journal of Chemical Education     Open Access   (Followers: 2)
African Journal of Pure and Applied Chemistry     Open Access   (Followers: 7)
Agrokémia és Talajtan     Full-text available via subscription   (Followers: 2)
Alchemy : Jurnal Penelitian Kimia     Open Access  
Alkaloids: Chemical and Biological Perspectives     Full-text available via subscription   (Followers: 3)
AMB Express     Open Access   (Followers: 1)
Ambix     Hybrid Journal   (Followers: 3)
American Journal of Biochemistry and Biotechnology     Open Access   (Followers: 61)
American Journal of Biochemistry and Molecular Biology     Open Access   (Followers: 13)
American Journal of Chemistry     Open Access   (Followers: 23)
American Journal of Plant Physiology     Open Access   (Followers: 12)
American Mineralogist     Full-text available via subscription   (Followers: 8)
Anadolu University Journal of Science and Technology     Open Access  
Analyst     Full-text available via subscription   (Followers: 41)
Angewandte Chemie     Hybrid Journal   (Followers: 120)
Angewandte Chemie International Edition     Hybrid Journal   (Followers: 168)
Annales UMCS, Chemia     Open Access   (Followers: 1)
Annals of Clinical Chemistry and Laboratory Medicine     Open Access   (Followers: 1)
Annual Reports in Computational Chemistry     Full-text available via subscription   (Followers: 2)
Annual Reports Section A (Inorganic Chemistry)     Full-text available via subscription   (Followers: 3)
Annual Reports Section B (Organic Chemistry)     Full-text available via subscription   (Followers: 7)
Annual Review of Chemical and Biomolecular Engineering     Full-text available via subscription   (Followers: 9)
Annual Review of Food Science and Technology     Full-text available via subscription   (Followers: 13)
Anti-Infective Agents     Hybrid Journal   (Followers: 3)
Antiviral Chemistry and Chemotherapy     Full-text available via subscription  
Applied Organometallic Chemistry     Hybrid Journal   (Followers: 5)
Applied Spectroscopy     Full-text available via subscription   (Followers: 23)
Applied Surface Science     Hybrid Journal   (Followers: 22)
Arabian Journal of Chemistry     Open Access   (Followers: 6)
ARKIVOC     Open Access   (Followers: 2)
Asian Journal of Biochemistry     Open Access   (Followers: 1)
Atomization and Sprays     Full-text available via subscription   (Followers: 3)
Australian Journal of Chemistry     Hybrid Journal   (Followers: 4)
Autophagy     Hybrid Journal   (Followers: 2)
Avances en Quimica     Open Access   (Followers: 1)
Biochemical Pharmacology     Hybrid Journal   (Followers: 7)
Biochemistry     Full-text available via subscription   (Followers: 222)
Biochemistry Insights     Open Access   (Followers: 4)
Biochemistry Research International     Open Access   (Followers: 5)
BioChip Journal     Hybrid Journal  
Bioinorganic Chemistry and Applications     Open Access   (Followers: 8)
Bioinspired Materials     Open Access   (Followers: 2)
Biointerface Research in Applied Chemistry     Open Access   (Followers: 1)
Biointerphases     Open Access   (Followers: 1)
Biology, Medicine, & Natural Product Chemistry     Open Access  
Biomacromolecules     Full-text available via subscription   (Followers: 17)
Biomass Conversion and Biorefinery     Partially Free   (Followers: 11)
Biomedical Chromatography     Hybrid Journal   (Followers: 7)
Biomolecular NMR Assignments     Hybrid Journal   (Followers: 2)
BioNanoScience     Partially Free   (Followers: 4)
Bioorganic & Medicinal Chemistry     Hybrid Journal   (Followers: 93)
Bioorganic & Medicinal Chemistry Letters     Hybrid Journal   (Followers: 84)
Bioorganic Chemistry     Hybrid Journal   (Followers: 9)
Biopolymers     Hybrid Journal   (Followers: 17)
Biosensors     Open Access   (Followers: 1)
Biotechnic and Histochemistry     Hybrid Journal   (Followers: 2)
Bitácora Digital     Open Access  
Boletin de la Sociedad Chilena de Quimica     Open Access  
Bulletin of the Chemical Society of Ethiopia     Open Access   (Followers: 3)
Bulletin of the Chemical Society of Japan     Full-text available via subscription   (Followers: 25)
Bulletin of the Korean Chemical Society     Hybrid Journal  
C - Journal of Carbon Research     Open Access   (Followers: 2)
Canadian Association of Radiologists Journal     Full-text available via subscription   (Followers: 2)
Canadian Journal of Chemistry     Full-text available via subscription   (Followers: 6)
Canadian Mineralogist     Full-text available via subscription   (Followers: 3)
Carbohydrate Research     Hybrid Journal   (Followers: 27)
Carbon     Hybrid Journal   (Followers: 65)
Catalysis for Sustainable Energy     Open Access   (Followers: 5)
Catalysis Reviews: Science and Engineering     Hybrid Journal   (Followers: 7)
Catalysis Science and Technology     Free   (Followers: 5)
Catalysis Surveys from Asia     Hybrid Journal   (Followers: 3)
Catalysts     Open Access   (Followers: 6)
Cellulose     Hybrid Journal   (Followers: 5)
Cereal Chemistry     Full-text available via subscription   (Followers: 4)
ChemBioEng Reviews     Full-text available via subscription  
ChemCatChem     Hybrid Journal   (Followers: 6)
Chemical and Engineering News     Free   (Followers: 11)
Chemical Bulletin of Kazakh National University     Open Access  
Chemical Communications     Full-text available via subscription   (Followers: 63)
Chemical Engineering Research and Design     Hybrid Journal   (Followers: 21)
Chemical Research in Chinese Universities     Hybrid Journal   (Followers: 3)
Chemical Research in Toxicology     Full-text available via subscription   (Followers: 17)
Chemical Reviews     Full-text available via subscription   (Followers: 127)
Chemical Science     Open Access   (Followers: 18)
Chemical Technology     Open Access   (Followers: 11)
Chemical Vapor Deposition     Hybrid Journal   (Followers: 4)
Chemical Week     Full-text available via subscription   (Followers: 7)
Chemie in Unserer Zeit     Hybrid Journal   (Followers: 52)
Chemie-Ingenieur-Technik (Cit)     Hybrid Journal   (Followers: 25)
ChemInform     Hybrid Journal   (Followers: 4)
Chemistry & Biodiversity     Hybrid Journal   (Followers: 5)
Chemistry & Biology     Full-text available via subscription   (Followers: 29)
Chemistry & Industry     Hybrid Journal   (Followers: 3)
Chemistry - A European Journal     Hybrid Journal   (Followers: 114)
Chemistry - An Asian Journal     Hybrid Journal   (Followers: 12)
Chemistry and Materials Research     Open Access   (Followers: 15)
Chemistry Central Journal     Open Access   (Followers: 5)
Chemistry Education Research and Practice     Free   (Followers: 4)
Chemistry in Education     Open Access   (Followers: 2)
Chemistry International     Hybrid Journal   (Followers: 1)
Chemistry Letters     Full-text available via subscription   (Followers: 43)
Chemistry of Materials     Full-text available via subscription   (Followers: 143)
Chemistry of Natural Compounds     Hybrid Journal   (Followers: 8)
Chemistry-Didactics-Ecology-Metrology     Open Access  
ChemistryOpen     Open Access   (Followers: 1)
Chemkon - Chemie Konkret, Forum Fuer Unterricht Und Didaktik     Hybrid Journal  
Chemoecology     Hybrid Journal   (Followers: 2)
Chemometrics and Intelligent Laboratory Systems     Hybrid Journal   (Followers: 15)
Chemosensors     Open Access  
ChemPhysChem     Hybrid Journal   (Followers: 6)
ChemTexts     Hybrid Journal  
CHIMIA International Journal for Chemistry     Full-text available via subscription   (Followers: 3)
Chinese Journal of Chemistry     Hybrid Journal   (Followers: 6)
Chinese Journal of Polymer Science     Hybrid Journal   (Followers: 10)
Chromatographia     Hybrid Journal   (Followers: 24)
Chromatography     Open Access   (Followers: 5)
Chromatography Research International     Open Access   (Followers: 5)
Clay Minerals     Full-text available via subscription   (Followers: 9)
Cogent Chemistry     Open Access  
Colloid and Interface Science Communications     Open Access  
Colloid and Polymer Science     Hybrid Journal   (Followers: 8)
Colloids and Surfaces B: Biointerfaces     Hybrid Journal   (Followers: 6)
Combinatorial Chemistry & High Throughput Screening     Hybrid Journal   (Followers: 4)
Combustion Science and Technology     Hybrid Journal   (Followers: 19)
Comments on Inorganic Chemistry: A Journal of Critical Discussion of the Current Literature     Hybrid Journal   (Followers: 1)
Composite Interfaces     Hybrid Journal   (Followers: 3)
Comprehensive Chemical Kinetics     Full-text available via subscription   (Followers: 2)
Comptes Rendus Chimie     Full-text available via subscription  
Comptes Rendus Physique     Full-text available via subscription   (Followers: 1)
Computational and Theoretical Chemistry     Hybrid Journal   (Followers: 10)
Computational Biology and Chemistry     Hybrid Journal   (Followers: 9)
Computational Chemistry     Open Access   (Followers: 2)
Computers & Chemical Engineering     Hybrid Journal   (Followers: 9)
Coordination Chemistry Reviews     Full-text available via subscription  
Copernican Letters     Open Access  
Critical Reviews in Biochemistry and Molecular Biology     Hybrid Journal   (Followers: 4)
Crystal Structure Theory and Applications     Open Access   (Followers: 2)
CrystEngComm     Full-text available via subscription   (Followers: 7)
Current Catalysis     Hybrid Journal   (Followers: 1)
Current Metabolomics     Hybrid Journal   (Followers: 3)
Current Opinion in Colloid & Interface Science     Hybrid Journal   (Followers: 7)
Current Opinion in Molecular Therapeutics     Full-text available via subscription   (Followers: 13)
Current Research in Chemistry     Open Access   (Followers: 7)
Current Science     Open Access   (Followers: 35)
Dalton Transactions     Full-text available via subscription   (Followers: 17)
Detection     Open Access   (Followers: 2)
Developments in Geochemistry     Full-text available via subscription   (Followers: 1)
Diamond and Related Materials     Hybrid Journal   (Followers: 12)
Dislocations in Solids     Full-text available via subscription  
Doklady Chemistry     Hybrid Journal  
Drying Technology: An International Journal     Hybrid Journal   (Followers: 3)
Eclética Química     Open Access   (Followers: 1)
Ecological Chemistry and Engineering S     Open Access   (Followers: 2)
Ecotoxicology and Environmental Contamination     Open Access  
Educación Química     Open Access   (Followers: 1)
Education for Chemical Engineers     Hybrid Journal   (Followers: 4)
EDUSAINS     Open Access  
Elements     Full-text available via subscription   (Followers: 1)
Environmental Chemistry     Hybrid Journal   (Followers: 5)
Environmental Chemistry Letters     Hybrid Journal   (Followers: 2)

        1 2 3 4 | Last

Journal Cover Chemistry and Materials Research
  [15 followers]  Follow
    
  This is an Open Access Journal Open Access journal
   ISSN (Print) 2224-3224 - ISSN (Online) 2225-0956
   Published by IISTE Homepage  [30 journals]
  • Oxidation Degradation Analysis Of Cyclic Natural Rubber (Resiprene-35) Due
           To Storage, Heating And Ultraviolet Rays

    • Authors: Alkhafi M. Siregar, Basuki Wirjosentono, Eddiyanto ., Thamrin .
      Abstract: Research on analysis oxidative degradation and stabilization of cyclic natural rubber (resipren-35) using wax commercial antioxidants, BHT, and Wingstay has been conducted. Properties of physics as a result of treatment of storaging, heating and irradiating by ultraviolet rays was studied. Structural analysis of functional groups was studied using FTIR, thermal properties using DSC and TGA analysis, crystallinity by XRD and test of the solubility and viscosity of cyclic natural rubber (CNR) before and after the occurrence of oxidative degradation. Research results indicate that the analysis of cyclical natural rubber (resipren-35) very easily degraded due to crosslinking and oxidized due to reaction with air (oxygen and ozone) in storaging, heating and irradiating by ultraviolet rays. Antioxidants can inhibit the oxidation degradation rate with the effectiveness is Wingstay> BHT> wax though not very significant. Samples Resipren-35 compared to rubber cyclically-450 Alpex more easily degraded due to differences in the degree of cyclization or the number of C = C double bond in Resipren-35. The measurement results are expected to provide input technologically cyclic preservation of natural rubber products which are resistant to storage, heating and exposure to UV rays. Keywords: Cyclic Natural Rubber, antioxidants, Polymer Degradation, Stabilizer, and Chain Breaking
      Issue No: Vol. 8
       
  • Synthesis, Theoretical Studies of N1,N2,1,2-Tetraphenylethane-1,2-Diimine
           and Their Derivatives

    • Authors: Hanan M. Ali
      Abstract: N1,N2,1,2-tetraphenylethane-1,2-diimine(1),N1,N2-bis(2-bromophenyl)-1,2diphenylethane-1,2-diimine(2) and N1,N2-bis(4-bromophenyl)-1,2-diphenylethane-1,2-diimine(3) were synthesised and studied theoretically. The bond lengths, bond angles, dihedral angles and close contact of atoms were calculated. There are variable results for each compound. Internal coordinate of the three compounds were showed that the atoms around the double bond were in R and S configuration and the angle type was dihedral in most of atoms. The molecular mechanics force field (MMFF94) energy and gradient for (1), (2) and (3) were also calculated. The results showed that the total energy for this frame were (746.902, 1223.418 and 1235.345) kcal/mol respectively and the RMS gradients were 80.761, 175.979 and 178.38 respectively. The MMFF94 minimization iteration was also calculated which equal to 455, 500 and 500 and the final energy for (1), (2) and (3) were (120.525, 153.35 and 117.306) kcal/mol respectively. Though, the molecular mechanics (MM2) minimization of (1), (2) and (3) were also calculated and the total energy were (78.4465, 85.3592 and 74.7126) kcal/mol. the results were showed the difference between the three compounds and the effect of substitution in their results, the compound (2) was gave high total energy higher than (1) and (3) because the bulky substituted Br in ortho position which near to the nitrogen of imine group can effective by steric effect and this can explain the high value of strain energy (E). High dipole/dipole value was observed in compound (2) which was also higher than (1) and (3) and the later was higher than (1) which explains the effect of substituted group and their position in the structure properties. The best minimization either use MMFF94 or MM2 were observed in compound (3) which gave lower total energy than (1) and (2). The MMFF94 minimization and MM2 minimization were indicated the steric effect of o-Br in compound (2). Keywords: Internal coordinate, Molecular mechanics, ligand.
      Issue No: Vol. 8
       
  • Pigment Ink Formulation, Tests and Test Methods for Pigmented Textile Inks

    • Authors: Muhammad Rafique Khan
      Abstract: Cotton, polyester, and cotton polyester blended woven fabrics were printed using an ink jet print using by means of a prepared pigment ink. Literature indicated that the development of insoluble pigment-based inks presents enormous challenges to the ink formulator. Meanwhile, pigments face several application problems in terms of their dispersion stability within the ink formulation, and consequently blocking the nozzles within the inkjet print head.The study was done on route bases: Formation of pigment ink for textile, Tests and test methods for pigmented textile inks, Limitations and Approaches in Development of Pigment Based Inks Keywords: Binder system, Dispersing agent, Tests and test methods, Ink formulation, pre-and post-treatments.
      Issue No: Vol. 8
       
  • Synthesis and Characterization of Trioxime Complexes for Platinum and
           Palladium Metals

    • Authors: Tamara Shaherlee, M.Moudar Al-Khuder
      Abstract: A novel trioxime (LH1) ligand bearing hydrazone side group and its complexes for platinum (II) and palladium (II) which have not been described in the literature Previously were synthesized. The trioxime ligand of bearing hydrazone group was synthesized by condensation of anti-glyoximehydrazine (GH2) with Diacetylemonoxime . Ligand forms mononuclear complexes [Pd(LH1)CH3COO]CH3COO and [M(LH1)Cl]Cl with a metal:ligand ratio of (1:1) with  M= Pt(II), Pd(II). The Complexes type of [Pd(LH1)CH3COO]CH3COO and [M(LH1)Cl]Cl are proposed to be a four-coordination. The ligand is coordinated through nitrogen atoms of oxime groups (C=N-OH) and imine group (C=N), acetate and chloride ion molecules are also coordinated to the metal ion to form complexes with square planer structure. Structural assignments are supported  by a combination of           H1-NMR ,  C13-NMR ,FT-IR , U.V-visible, elemental analyses (CHN). Keywords: Trioxime, Hydrazone, Metal complex.
      Issue No: Vol. 8
       
  • Isolation, Purification and Characterization of Flavor Compounds in the
           Fruit Pulp of Sysepalum dulcificum

    • Authors: C.J. Chukwu, C.O. Okafor, F.I. Nwabue, O. N. Omaka, W. Oti, N. A. Obasi
      Abstract: Flavour is an organoleptic responds to parameter commonly described as taste which can be classified as natural, nature-identical or artificial flavouring substances. In this study, cold and hot ethanolic extracts , were obtained from Synepalum  dulcificum ((Daniell) known locally as ntum in Akaeze dialect of Igbo language of Nigeria and traditionally used as sweetener were evaluated for its flavourant principles. The presence of bioactive components was detected and the result revealed that hot ethanol gave the highest percent extract recoveries of  3.33%  while the cold extraction technique yielded 1.81 %. The result of sensory evaluation of purified extract showed that  no significant difference was observed between these values except for sample 760 (p<0.05). Chromatographic analysis of  cold ethanol extract revealed that component E-1 has a melting point of 66-68oC while the GC analysis of  E-1showed the eluate of two compounds at different retention times of 12.692 and 15.133 minutes respectively. Spectral Analysis of compounds in E-1(a, b)  revealed that they are possible isomers and based on spectral data the structure of compound E-1a was established as 2, 5-dimethyl-2, 4-dihydroxy-3(2H)-furanone while E-1b was established as 3, 5-dihydroxy-6-methyl-2, 3-dihydro-4H-pyranone Keywords: Flavour, purification, Syepalum dulcificum, bioactive, characterization.
      Issue No: Vol. 8
       
  • Synthesis of Monocalcium Phosphate from the Syrian Phosphoric Acid and
           Calcium Carbonate

    • Authors: Lama Nour Aldeen, Lotfy Aothman, Mouhammad Moudar Alkhuder
      Abstract: We have in this work the synthesis of monocalcium phosphate from the Syrian phosphoric acid and calcium carbonate (CaCO3 / H2O = 1/2 Weight). In this study it was to identify all of the time and temperature idealists for interaction , . Reduce the concentration of fluorine in wet phosphoric acid by deposition of fluorine in the form of salt Na2SiF6 by addition sodium carbonate  , proving artificial composite  identity by pulling the spectrums  infrared. Keywords: wet phosphoric acid , Monocalcium phosphate (MCP) , Calcium Carbonate , Titration with sodium hydroxide , the yield .
      Issue No: Vol. 8
       
  • Carboxymethylation of Icacina trichantha Oliv.Tuber Starch and Its Use as
           a Viscosifier and Fluid Loss Control Agent in Water Based Mud

    • Authors: Ogunwa; K. I, Akaranta, O, Osuji, L. C, Achugasim, O
      Abstract: Starch from a non-food wild plant- Icacina trichantha oliv.tuber was extracted, characterized and chemically modified by carboxymethylation to produce two new derivatives of two different degrees of substitution. The derivatives were used in the preparation of water based muds. The rheological and filtration properties of these new muds were compared to those of muds prepared with the underivatized native starch and a commercial drilling starch using viscometric and fluid loss methods. Experimental results showed that the new muds have better filtration control behavior and viscosity than those of the native and commercial drilling starches. The values of flow index of the new muds were found to be less than 1.0, showing non-Newtonian and Pseudoplastic flow behavior of drilling muds. Yield stress of the muds increased with the modification. Viscosity decreased with increasing shear rate, showing shear thinning behavior of drilling muds. The new muds were found to obey the API models for static filtration as well as Power law and Herschel–Bulkley models for fluid rheology. Keywords: Icacina trichantha oliv.;Carboxymethyl starch; drilling mud; filtration; rheology.
      Issue No: Vol. 8
       
  • Synthesis and Spectral Study of 2-(1-hydrazonoethyl) Pyridine Ligand and
           Their Complexes with Some Transition Metal (II)

    • Authors: Darine Alkourdi, Abed Al hadiDaleh, Thanaa Shriteh, Sultan T. Abu-Orabi
      Abstract: In this study, new novel[APH=2-(1-hydrazonoethyl)pyridine] ligand; which have contained hydrazone group, and their transition metal complexes of [NiII, , ZnII and CdII] were synthesized.The (APH) ligand was synthesized by condensation of 2-Acetyl pyridine with hydrazine monohydrate, and the reaction of (APH) ligand with metal ions ratio of (2:1) respectively, were formed a mononuclear complexes with a metal(II) ions of types [M(APH)2]Cl2and [Ni(APH)2Cl2] when [M= NiII, ZnII, CdII].The ligand and their complexes were characterized and study on the basis of FT-IR and U.V.–visible. Some physical properties and spectral data for ligands and their complexes are given in Table 1 and 2. Keywords : metal complexes ; (APH) ; 2-Acetyl pyridine .
      Issue No: Vol. 8
       
  • Preparation and Characterization of Nanocompocite Conducting Polymers
           (PANI-DBSA/MWNCT)

    • Authors: Kareema M. Ziadan, Hanaa H. Inayh
      Abstract: Nanocomposite  conducting polymers ,PANI-DBSA/MWNCT  were  prepared  by adding different weight ratios of c-MWNCT (1,2,3,5 ) % to Polyaniline (PANI) doped with DBSA( PANI-DBSA ). Structural characteristics of  nanofibers composites and the formation of functional group were measured  by . X-ray diffraction  (XRD) and FT-IR spectroscopy. X-Ray Diffraction showed crystalline peaks of the Nanocomposites PANI-DBSA /MWNCT. FT-IR spectra confirmed the change of MWNCT  to c-MWNCT  by strong acids  ,and PANI  doped with DBSA. The Morphology and diameters for the  nanofibers composites were studied by Atomic Force  Microscope  (AFM) and  scanning electron microscope(SEM). The average diameter for  nanofiber composites was about 117 nm (at 1 wt% MWCNT concentration ) and 90.47 nm (at 5wt% MWCNT concentration) found from AFM.  SEM  also show the homogeneous coating of PANI-DBSA onto the MWNCNT indicating that carbon nanotubes were well dispersed in conducting  polymer matrix Keywords: conducting polymer, polyaniline, multi-walled carbon nanotubes,  nanocomposites  
      Issue No: Vol. 8
       
  • Characterization of Nanoparticles Fe3O4 Nanocomposite Blend with
           Thermoplastic HDPE

    • Authors: Eva Marlina Ginting, Nurdin Bukit, Erna Frida, Hepi Arman Gea
      Abstract: This study aims to determine the mechanical properties, morphology and thermal thermoplastic blends of High Density Polyethylene (HDPE) with a filler material Fe3O4 nanoparticles. The method is performed by mixing the ingredients on Internal Mixer tool types Labo Plastomill 30 R I50 models with variations in  the quantity (2,4,6,8) wt% Fe3O4 nanoparticles with a size of 33.11 nm and 2% by weight Polyethylene Grafted Maleic Anhidride (PE -g-MA) and without PE-g-MA, with a chamber volume of 60 cc with a temperature of 1500C at a speed of 50 rpm for 10 minutes. The results of the mechanical properties obtained  an increase in tensile strength maximum with increasing the quantity of nanoparticles Fe3O4 without and the compatibilizer PE-g-MA with optimal the quantity at 2% by weight, while the elongation at break decreased with increasing the quantity of nanoparticles Fe3O4, but the tensile strength better by using compatibilizer, as well as Young's Modulus, s increased with increasing magnetic nano particles, but in general without compatibilizer better. The results of the dispersion morphology of the occurrence of a homogeneous mixture and intercalates between HDPE thermoplastic matrix with Fe3O4 particles and homogeneous mixture. The addition amount of filler increases the thermal stability and crystallinity of composite. Keywords: Fe3O4 nanoparticles, HDPE, PE-g-MA
      Issue No: Vol. 8
       
  • Improving the Properties of Carbon Steel Using Silication by Chemical
           Vapor Deposition (CVD)

    • Authors: Abdulwahab Almasri
      Abstract: The silication is one of the surface treatment technologies that can produce silic containing surface layers with high hardness, good corrosion, and wear resistance on the steel matrix.This study aims to add silica to the carbon steel used locally in the manufacture of some elements of the machines in a manner of CVD (deposition steam chemical) and to increase the hardness and stamina and resistance to shock and friction, also earning silica steel high resistance to corrosion and scratching, and soluble in acids, with the application of Asalkna for (2) hours at temperatures 565,1000,1100,1200 oC, using ammonium chloride and ammonium fluoride in a mixture silication.Found that the proportion of silica formed on the surface of steel and its compounds are the best we can when the heat treatment of the degree of 1100oC and use of fluoride of ammonium in a mixture Asalkna, and also increases hardness outer surface of the steel carbon and high summit of silica compared with the top of the iron in the case of sample treatment and the presence of the amount of very little silica compared with the high percentage of iron ore in the case of the sample; and the increasing rate of protection to the surface of the steel from corrosion at the same previous conditions. Keywords: CVD - FeSi (chemical vapor deposited Silicon Iron)
      Issue No: Vol. 8
       
  • Isolation and Identification of Benzyl Hepta Methyl Docosahydropicene
           Carboxylic Acid from Erica Verticillata

    • Authors: Suhair Ali
      Abstract: Phytochemical analysis of the CH2Cl2 fractions of Erica verticillata. has led to the isolation and identification of a new Benzyl hepta methyl docosahydropicene carboxylic acid. The structure elucidation of  compound was based on spectroscopy data IR, 1H and 13C – NMR, DEPT (90,135), 1H-1HCOSY and HETCOR. Keywords: Erica, docosahydropicene , hepta methyl
      Issue No: Vol. 8
       
  • Journal Cover Page

    • Authors: Journal Editor
      Issue No: Vol. 8
       
  • Synthesis, Characterization and Biological Activity of New Complex Cobalt,
           Nickel and Chromium of (Z)-4-(3-Carboxyacrylamido)-2-Hydroxybenzoic Acid

    • Authors: Khansa Abdul-Razaq Ali Al-Assadi
      Abstract: Synthesis of(Z)-4-(3-carboxyacrylamido)-2-hydroxybenzoic acid ligand from acetic anhydride and  p- amino salicylic acid was complex with Co(II),Ni(II) and Cr(III),the complexes have been characterized by spectral(FTIR,Uv-Vis)and electrochemical method using conductmetric ,the resulting nanoparticles were characterized by X-ray diffraction (XRD) and biological activity  .
      Issue No: Vol. 8
       
 
 
JournalTOCs
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Email: journaltocs@hw.ac.uk
Tel: +00 44 (0)131 4513762
Fax: +00 44 (0)131 4513327
 
Home (Search)
Subjects A-Z
Publishers A-Z
Customise
APIs
Your IP address: 54.91.243.175
 
About JournalTOCs
API
Help
News (blog, publications)
JournalTOCs on Twitter   JournalTOCs on Facebook

JournalTOCs © 2009-2016