【作者】 薛裕华； 冯连芳； 王嘉骏； 胡国华；

【Author】 XUE Yuhua FENG Lianfang WANG Jiajun HU Guohua (State Key Laboratory of Polymer Reaction Engineering, Zhejiang University, Hangzhou 310027, China)

【机构】 浙江大学聚合反应工程国家重点实验室；

【摘要】 <正>多面体低聚倍半硅氧烷(polyhedral oligomeric silsesquioxane简称POSS)是一种纳米尺度笼状结构的化合物,又称立方硅烷。带反应官能团的POSS可以和传统的聚合物形成有机, 无机杂化材料,近年来在国际上受到广泛的关注。环氧树脂(EP)是目前使用最广的工程树脂之一,但其韧性低和耐高温性差限制了它的使用。本文首先合成乙烯基多面体低聚倍半硅更多还原

【Abstract】 The octavinyl polyhedral oligomeric silsesquioxane (OvPOSS) was synthesized via the hydrolytic condensation of vinyltrichlorosilane catalyzed by concentrated hydrochloric acid and was further epoxidized by peroxyacetyl acid to form a new epoxy polyhedral oligomeric silsesquioxane (epoxy-POSS) ((CH2CHO)n(CH2CH)8-nSi8O12)- Epoxy resin/POSS hybrids were prepared via in situ polymerization of diglycidyl ether of bisphenol A (DGEBA), l,5-Diamino-2-methylpentane (Dytek A) and epoxy-POSS. The inorganic/organic nanocomposites containing POSS with different proportions were characterized by XRD, SEM, DSC, TGA. It indicated that epoxy resin/POSS hybrids improve thermal stability and mechanical properties.更多还原