文献类型：期刊文献

英文题名：Nanoscale-confined crystallization in epoxy resin and polyethylene-block-poly(ethylene oxide) diblock copolymer blends

作者：Yi Hongling[1];Wang Xilin[1];Wei Ting[1];Lin Heng[1];Zheng Baicun[1]

机构：[1]E China Univ Sci & Technol, Res & Dev Ctr Adv Sports Mat, Shanghai 200237, Peoples R China

年份：2012

卷号：290

期号：14

起止页码：1347

外文期刊名：COLLOID AND POLYMER SCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000307542800001)】；

语种：英文

外文关键词：Polymer blends; Polyethylene-block-poly (ethylene oxide); Epoxy resin; Crystallization kinetics

摘要：In this paper, the nanoscale-confined crystallization behavior and crystallization kinetics in blends of double-crystalline polyethylene-block-poly(ethylene oxide) (PE-b-PEO) diblock copolymer with diglycidyl ether of bisphenol A epoxy resin were investigated. The results showed that there appeared three crystallization regimes related to the crystallization of the PE block within three different microenvironments in the epoxy resin/PE-b-PEO blends. The Avrami index n is around 1.8-2.4, suggesting PE block of the copolymer in the blends exhibited nanoscale-confined crystallization behavior by homogeneous nucleation. The PE block nanoscale-confined crystallization is ascribed to the formation of the strong intermolecular hydrogen bonding interaction between hydroxyl groups of amine-cured epoxy and ether oxygen atoms of PEO, as seen from Fourier transform infrared spectroscopy spectra.