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Chemical analysis, FTIR and Microhardness study to find out nonlinear optical property of L-asparagine lithium chloride: A semiorganic crystals

16-09-2013 | Author(s): S. Masilamani , A. Mohamed Musthafa, Microchemical Journal, 2013

Publication date: Available online 11 September 2013 Source:Microchemical Journal Author(s): S. Masilamani , A. Mohamed Musthafa In the recent times semiorganic nonlinear optical material is a forefront of current research because of its importance to providing key functions of frequency ...

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Synthesis and Characteristics of a Biobased High-Tg Terpolyester of Isosorbide, Ethylene Glycol, and 1,4-Cyclohexane Dimethanol: Effect of Ethylene Glycol as a Chain Linker on Polymerization

12-09-2013 | Won Jae Yoon; Sung Yeon Hwang; Jun Mo Koo; Yoo Jin Lee; Sang Uck Lee; Seung Soon Im, Macromolecules, 2013

A solution for overcoming the low reactivity of terephthalic acid and isosorbide (ISB) is proposed that uses 1,4-cyclohexane dimethanol and ethylene glycol. Using the different reactivities, volatilities, and degree of steric hindrances among the three diols, a highly heat-resistive biobased ...

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Polymerization of Propylene Promoted by Zirconium Benzamidinates

11-09-2013 | Moris Eisen; Naveen V Kulkarni; Sinai Aharonovich; Jia-Sheng Zhang; Mark M Botoshansky; Moshe Kapon, Dalton Transactions, 2013

New bis(N,N- trimethylsilylarylamidinate) zirconium dichloride complexes with various carbon substituents were prepared and their solid as well as solution state structures were studied. In the polymerization of propylene, after activation by MAO, these catalysts provided two fractions. Ether ...

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Direct Fabrication of Hierarchical Porous Carbonaceous Microparticles by Electron‐Beam Irradiation and Post‐Annealing of Polystyrene Colloidal Crystals

09-09-2013 | Seung Hwa Yoo, Jong Min Kum, Qingsong Huang, Sung Oh Cho, Macromolecular Materials and Engineering, 2013

A novel approach to fabricate hierarchical porous carbonaceous microparticles (HPCMs) by electron irradiation of polystyrene (PS) colloidal crystals followed by annealing is presented. Electron irradiation transforms PS spheres into hydrogenated amorphous carbon and post‐annealing further ...

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Mechanical, electrical, and dielectric properties of polyvinylidene fluoride/short carbon fiber composites with low‐electrical percolation threshold

05-09-2013 | Ranvijai Ram, Mostafizur Rahaman, Dipak Khastgir, Journal of Applied Polymer Science, 2013

Abstract In this investigation, polyvinylidene fluoride (PVDF)/short carbon fiber (SCF) composites have been prepared by solution casting technique to enhance electrical and dielectric properties with very low‐electrical percolation threshold (0.5 phr SCF). The effect of SCF content on ...

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Reactions of an Al–P-Based Frustrated Lewis Pair with Carbonyl Compounds: Dynamic Coordination of Benzaldehyde, Activation of Benzoyl Chloride, and Al–C Bond Cleavage with Benzamide

04-09-2013 | Werner Uhl; Christian Appelt, Organometallics, 2013

Treatment of the Al/P-based frustrated Lewis pair (FLP) Mes2PC(═CHPh)Al(CMe3)2 (1) with benzaldehyde afforded the adduct 2 with a five-membered AlCPCO heterocycle. The carbonyl oxygen atom is bound to aluminum and the carbonyl carbon atom to phosphorus. 2 is dynamic in solution at room ...

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Copper removal from aqueous solution using biochar: Effect of chemical activation

26-08-2013 | Author(s): L. Trakal , R. Šigut , H. Šillerová , D. Faturíková , M. Komárek, Arabian Journal of Chemistry, 2013

Publication date: Available online 22 August 2013 Source:Arabian Journal of Chemistry Author(s): L. Trakal , R. Šigut , H. Šillerová , D. Faturíková , M. Komárek The main aim of this study was to test the efficiency of biochar for Cu removal from synthetic and soil solutions, ...

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Reactions of Five-Coordinate Platinum(IV) Complexes with Molecular Oxygen

26-08-2013 | Margaret L. Scheuermann; Avery T. Luedtke; Susan K. Hanson; Ulrich Fekl; Werner Kaminsky; Karen I. Goldberg, Organometallics, 2013

The reactions of various five-coordinate Pt(IV) complexes with molecular oxygen have been studied. In arene solution, the complexes (tBuMe2nacnac)PtMe3 (1; tBuMe2nacnac– = [((4-tBu-2,6-Me2C6H2)NC(CH3))2CH]−), (Me3Me-nacnac)PtMe3 (2; Me3Me-nacnac– = [((2,4,6-Me3C6H2)NC(CH3))2CCH3]−), and ...

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A new bifunctional electrochemical sensor for oxidation of cysteine and reduction of iodate

25-08-2013 | Author(s): Somayeh Kakhki , Esmaeil Shams, Journal of Electroanalytical Chemistry, 2013

Publication date: 1 September 2013 Source:Journal of Electroanalytical Chemistry, Volume 704 Author(s): Somayeh Kakhki , Esmaeil Shams In this work, a new organic–inorganic hybrid compound containing N,N′-bis(salicylidene)-1,2-phenylenediaminocobalt (III) (CoSal) complex and a Keggin type ...

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Fabrication and Characterization of Dual Function Nanoscale pH-Scanning Ion Conductance Microscopy (SICM) Probes for High Resolution pH Mapping

22-08-2013 | Binoy Paulose Nadappuram; Kim McKelvey; Rehab Al Botros; Alex W. Colburn; Patrick R. Unwin, Analytical Chemistry, 2013

The easy fabrication and use of nanoscale dual function pH-scanning ion conductance microscopy (SICM) probes is reported. These probes incorporate an iridium oxide coated carbon electrode for pH measurement and an SICM barrel for distance control, enabling simultaneous pH and topography mapping. ...

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