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Comparison of Covalent and Noncovalent Interactions of Carbon Nanotubes on the Crystallization Behavior and Thermal Properties of Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)
In this study, multiwalled carbon nanotubes (MWCNTs) were dispersed into a poly(3-hydroxybutyrate-co23-hydroxyvalerate) (PHBV) matrix, in which PHBV was either covalently attached to the nanotubes through an esterification reaction between the carboxylic groups of functionalized MWCNTs and the hydroxyl groups of PHBV with toluene diisocyanate as a coupling agent or physically mixed to ...
http://www.polymer.cnt//ss/yuhouyong/publicationsshow_10493.html |
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Cellulose nanocrystals as green fillers to improve crystallization and hydrophilic property of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)
The green nanocomposites of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) with various cellulose nanocrystals (CNCs) contents were prepared by solution casting method. The effects of CNCs on the crystallization behavior, spherulitic morphology, crystal structure and hydrophilic property of PHBV were studied by differential scanning calorimeter (DSC), polarized optical micro...
http://www.polymer.cnt//ss/yuhouyong/publicationsshow_10489.html |
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Synthesis and Properties of Single Domain Strontium Hexa-ferrite Ultrafine Powders via a Surfactant-Assisted Co-precipitation Method
A surfactant-assisted co-precipitation method with polyethylene glycol (PEG) or cetyltrimethylammonium bromide (CTAB) as the surfactant has been used to synthesize high-quality strontium hexa-ferrite (SrM ferrite) ultrafine powders, and the influences of the surfactants on the phase formation, particle sizes and morphologies as well as the magnetic properties of the synthesized powders have been i...
http://www.polymer.cnt//ss/zhangming/publicationsshow_10475.html |
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38. Highly sulfonated co-polyimides containing hydrophobic cross-linked networks as proton exchange membranes
A novel diamine monomer bearing double hydrophobic cross-linkable tetrafluorostyrol side-groups has been successfully synthesized. Based on this monomer along with 4,4''''''''-diaminodiphenyl ether-2,2''''''''-disulfonic acid (ODADS) and 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTDA), a series of crosslinked highly sulfonated co-polyimide (CSPIy-6FATFVPx) membranes with IEC values ranging f...
http://www.polymer.cnt//ss/guanshaowei/publicationsshow_10381.html |
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33. Pendant-group cross-linked highly sulfonated co-polyimides for proton exchange membranes
A series of pendant-group cross-linkable sulfonatecl co-polyimides (SPIs) with high degree of sulfonation were synthesized via a one-pot poly-condensation reaction from 1,3-bis(2-trifluoromethyl-4-aminophenoxy)-5-(2,3,5,6-tetrafluoro-4-vinylphenoxy)benzene (6FTFPB), 1,4-bis(4-amino-2-trifluoromethylphenoxy)benzene (6FAPB), 4,4''''''''-diamindodiphenyl ether-2,2''''''''-disulfonic acid (ODADS) and ...
http://www.polymer.cnt//ss/guanshaowei/publicationsshow_10378.html |
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37. Highly sulfonated co-polyimides containing cross-linkable hydrophobic tetrafluorostyrol side-groups for proton exchange membranes
A series of novel highly sulfonated co-polyimides (SPI-20s) bearing cross-linkable hydrophobic tetrafluorostyrol side-groups have been successfully synthesized. The cross-linking reaction of the tetrafluorostyrol groups in the SPI-20s was performed at 260 degrees C without any additive. The glass transition temperatures of the cross-linked membranes were determined by differential scanning calorim...
http://www.polymer.cnt//ss/guanshaowei/publicationsshow_10374.html |
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112. Preparation of poly(lactic-co-glycolic acid) and chitosan composite nanocarriers via electrostatic self assembly for oral delivery of insulin
To improve insulin bioavailability and overcome multiple barriers for oral delivery of insulin, the composite nanocarriers (PLGA/FA-CS) prepared from poly(lactide-co-glycoside) (PLGA) and folic acid modified chitosan (FA-CS) were fabricated via electrostatic self-assembly method. The resultant composite nanocarriers exhibited low cytotoxicity against HT-29 cells and excellent stability against p...
http://www.polymer.cnt//ss/ghjiang_cn/publicationsshow_10340.html |
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Theoretical insight into photo-induced intramolecular electron transfer in heterodinuclear Ru(II)?Co(III) complexes.
Photo-induced intramolecular electron transfer (IET) of a series of heterodinuclear Ru(II)–Co(III) complexes has been theoretically investigated by density functional theory (DFT) and time-dependent DFT (TD-DFT). The Ru(II)–Co(III) complexes display Ru → Co metal-to-metal electron transfer (MMET) in the visible region. The photosensitivity involving spectral response range and absorption inte...
http://www.polymer.cnt//ss/luxiaoqing/publicationsshow_10188.html |
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Gas-phase reactions of Co+ with ethylamine: A theoretical approach to the reaction mechanisms of transition metal ions with primary amines.
We report herein a comprehensive study of gas-phase reactions of Co(+) with ethylamine using density functional theory. Geometries and energies for all the stationary points involved in the reactions are investigated at the B3LYP/6-311++G(2df,2pd) level. Six different "classical" N and "nonclassical" ethyl-H attached isomers are found for the Co(+)-ethylamine complexes. The classical complexes a...
http://www.polymer.cnt//ss/luxiaoqing/publicationsshow_10179.html |
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Triphenylene discotic liquid crystal trimers synthesized by Co2(CO)8-catalyzed terminal alkyne [2+2+2] cycloaddition.
Bin Han, Ping Hu, Bi-Qin Wang, Carl Redshaw and Ke-Qing Zhao. Triphenylene discotic liquid crystal trimers synthesized by Co2(CO)8-catalyzed terminal alkyne [2+2+2] cycloaddition.
Beilstein J. Org. Chem., 2013, 9, 2852.
http://www.polymer.cnt//ss/zhaokeqing/publicationsshow_10124.html |
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