文献类型：期刊文献

英文题名：Synthesis, Structure, and Properties of High-Impact Polystyrene/Octavinyl Polyhedral Oligomeric Silsesquioxane Nanocomposites

作者：Hu, Kun[1];Cui, Zhong-Kai[2];Yuan, Yongliang[1];Zhuang, Qixin[1];Wang, Tongxin[1];Liu, Xiaoyun[1];Han, Zhewen[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Dept Polymer Sci, Minist Educ,Key Lab Specially Funct Polymer Mat &, Shanghai 200237, Peoples R China;[2]Univ Montreal, Dept Chem, CP-6128,Succ Ctr Ville, Montreal, PQ H3C 3J7, Canada

年份：2016

卷号：37

期号：4

起止页码：1049

外文期刊名：POLYMER COMPOSITES

收录：;EI(收录号：20144200100424);WOS:【SCI-EXPANDED(收录号:WOS:000372977000009)】；

基金：Contract grant sponsor: Innovation Program of Shanghai Municipal Education Commission; contract grant number: 12ZZ049; contract grant sponsor: Basic Innovation Research Program of Science and Technology Commission of Shanghai; contract grant number: 13JC1402002; contract grant sponsor: National Natural Science Foundation of China; contract grant number: 50973028; contract grant sponsor: Shanghai Nature Science Foundation of China; contract grant number: 12ZR1407900; contract grant sponsor: China Scholarship Council.

语种：英文

外文关键词：Oligomers - Free radicals - Impact strength - Decomposition - High resolution transmission electron microscopy - organic-inorganic materials - X ray diffraction - Fourier transform infrared spectroscopy - Tensile strength - Free radical polymerization - Polystyrenes

摘要：The organic-inorganic hybrid nanocomposites from high-impact polystyrene/octavinyl polyhedral oligomeric silsesquioxane (HIPS/POSS) containing various percentages of POSS were prepared by free radical polymerization and characterized by Fourier transform infrared spectroscopy (FTIR), H-1-NMR, thermal gravity analysis (TGA), X-ray diffraction (XRD), and transmission electron microscopy (TEM). The octavinyl POSS has formed covalent bond connected PS-POSS hybrid with polystyrene. POSS can well disperse in the composites at the composition of 0.5 and 1 wt%. The mechanical properties and thermostability of HIPS/POSS nanocomposites were significantly improved. The tensile strength, the izod impact strength, and the elongation at break of the nanocomposite containing 1 wt% of POSS was increased, respectively, by 15.73%, 75.62%, and 72.71% in comparison with pristine HIPS. The thermal decomposition temperature of HIPS/POSS (1 wt% of POSS) was 33 degrees C higher than that of pristine HIPS. The HIPS/POSS nanocomposites showed great potential for applications in many fields, such as electric appliance and automotive trim. (C) 2014 Society of Plastics Engineers