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

机构：[1] Research and Development Center for Advanced Sports Materials, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, 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：EI(收录号：20124215567003)

语种：英文

外文关键词：Ethylene - Fourier transform infrared spectroscopy - Crystallization kinetics - Polyethylene oxides - Polypropylenes - Nanotechnology - Block copolymers - Nucleation - Polymer blends - Hydrogen bonds

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. ? Springer-Verlag 2012.