文献类型：期刊文献

英文题名：Controlling nanodomain morphology of epoxy thermosets templated by poly(caprolactone)-: Block -poly(dimethylsiloxane)- block -poly(caprolactone) ABA triblock copolymer

作者：Yang, Jingyi[1]; Zhou, Quan[1]; Shen, Kang[1]; Song, Ning[1]; Ni, Lizhong[1]

机构：[1] East China University of Science and Technology, China

年份：2018

卷号：8

期号：7

起止页码：3705

外文期刊名：RSC Advances

收录：EI(收录号：20180504691331)

语种：英文

外文关键词：Curing - Thermosets - Morphology - Silicones - Epoxy resins - Microchannels - Block copolymers - Nanostructures - Phenols

摘要：In this paper, triblock copolymer was incorporated into epoxy to prepare nano thermosets. After studying the compatibility between polydimethylsiloxane (PDMS), polycaprolactone (PCL) and bisphenol A epoxy resin (E-54), poly(caprolactone)-poly(dimethylsiloxane)-poly(caprolactone) (PCL-b-PDMS-b-PCL) triblock copolymer was incorporated into bisphenol A epoxy resin (E-54) and cured with DDS. A nano structure was formed and the size of the spherical phase became larger with increasing PCL-b-PDMS-b-PCL. According to the fact that TGDDM/PCL was compatible and TGDDM/PDMS was incompatible during the curing reaction, the mechanism of nano structure formation was self-assembly. The factors of influencing nano structure formation were discussed with regard to different curing temperatures and accelerators. Curing kinetics was utilized to study the effect of accelerator on nano structure formation. ? 2018 The Royal Society of Chemistry.