The Experts below are selected from a list of 2076 Experts worldwide ranked by ideXlab platform
Yiqing Wang - One of the best experts on this subject based on the ideXlab platform.
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Improving the Gas Barrier Property of SBR/clay Nanocomposite through In-Situ Sulfur Modification during Curing Process
2016Co-Authors: Yiqing Wang, Liqu ZhangAbstract:Abstract. Rubber/clay nanocomposites have been explored as alternative materials to replace expensive halogenated butyl rubber. In order to further improve their gas barrier properties, a simple and efficient method through sulfur modification was applied in this work. Excess sulfur was added into SBR/clay nanocompound to prepare sulfur modified nanocomposite via the formation of Cyclic Sulfide in addition to crosslinking. The vulcanization behavior, mechanical properties, dynamic mechanical property and gas barrier property of the nanocomposites were investigated. It was found that the sulfur modified SBR/clay nanocomposites showed much increased glass transition temperature and lower gas permeability
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improving the gas barrier property of sbr clay nanocomposite through in situ sulfur modification during curing process
Applied Mechanics and Materials, 2011Co-Authors: Yiqing Wang, Jun Lin, Liqun ZhangAbstract:Rubber/clay nanocomposites have been explored as alternative materials to replace expensive halogenated butyl rubber. In order to further improve their gas barrier properties, a simple and efficient method through sulfur modification was applied in this work. Excess sulfur was added into SBR/clay nanocompound to prepare sulfur modified nanocomposite via the formation of Cyclic Sulfide in addition to crosslinking. The vulcanization behavior, mechanical properties, dynamic mechanical property and gas barrier property of the nanocomposites were investigated. It was found that the sulfur modified SBR/clay nanocomposites showed much increased glass transition temperature and lower gas permeability.
Liqun Zhang - One of the best experts on this subject based on the ideXlab platform.
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improving the gas barrier property of sbr clay nanocomposite through in situ sulfur modification during curing process
Applied Mechanics and Materials, 2011Co-Authors: Yiqing Wang, Jun Lin, Liqun ZhangAbstract:Rubber/clay nanocomposites have been explored as alternative materials to replace expensive halogenated butyl rubber. In order to further improve their gas barrier properties, a simple and efficient method through sulfur modification was applied in this work. Excess sulfur was added into SBR/clay nanocompound to prepare sulfur modified nanocomposite via the formation of Cyclic Sulfide in addition to crosslinking. The vulcanization behavior, mechanical properties, dynamic mechanical property and gas barrier property of the nanocomposites were investigated. It was found that the sulfur modified SBR/clay nanocomposites showed much increased glass transition temperature and lower gas permeability.
Liqu Zhang - One of the best experts on this subject based on the ideXlab platform.
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Improving the Gas Barrier Property of SBR/clay Nanocomposite through In-Situ Sulfur Modification during Curing Process
2016Co-Authors: Yiqing Wang, Liqu ZhangAbstract:Abstract. Rubber/clay nanocomposites have been explored as alternative materials to replace expensive halogenated butyl rubber. In order to further improve their gas barrier properties, a simple and efficient method through sulfur modification was applied in this work. Excess sulfur was added into SBR/clay nanocompound to prepare sulfur modified nanocomposite via the formation of Cyclic Sulfide in addition to crosslinking. The vulcanization behavior, mechanical properties, dynamic mechanical property and gas barrier property of the nanocomposites were investigated. It was found that the sulfur modified SBR/clay nanocomposites showed much increased glass transition temperature and lower gas permeability
Richard M. Kellogg - One of the best experts on this subject based on the ideXlab platform.
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Sulfur derivatives of ephedra alkaloids; new and highly efficient chiral catalysts.
Tetrahedron: Asymmetry, 1994Co-Authors: Robert P. Hof, Martin A. Poelert, Nathalie C.m.w. Peper, Richard M. KelloggAbstract:Abstract Sulfur derivatives of ephedrine catalyze the 1,2-addition of diethylzinc to benzaldehyde in high enantiomeric excess. DiSulfides and Cyclic Sulfide derivatives of these compounds serve the purpose very well, and the actual catalytically active species, containing zinc, has been extracted from the reaction mixture.
Yingyeung Yeung - One of the best experts on this subject based on the ideXlab platform.
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catalytic asymmetric bromoetherification and desymmetrization of olefinic 1 3 diols with c2 symmetric Sulfides
Journal of the American Chemical Society, 2014Co-Authors: Chong Kiat Tan, Feng Chen, Yingyeung YeungAbstract:An enantioselective and highly diastereoselective bromoetherification and desymmetrization of olefinic 1,3-diols has been developed using a C2-symmetric Cyclic Sulfide catalyst. This methodology has been successfully applied to the synthesis of the key intermediate of an orally active antifungal drug posaconazole (Noxafil).
