摘要
报导了PMMA/USPU共聚物的合成与结构表征。研究结果表明,USPU与MMA共聚能形成交联网络的结构,当MMA含量为40％时,交联密度达最大值。共聚物具有明显的两相体系的特征,并且两相之间因交联而产生强烈的相互作用。
Synthesis and structural characterization of PMMA/USPU copolymers have been reported in this paper. It has been verified that the copolymers have cross -link network structure and two -phase morphologies by the dynamic mechanical analysis and swelling measurement. The cross - link density of the copolymers reaches a maximum when MMA content in the copolymer is 40% by weight. Strong interaction between PMMA and USPU phases has been observed, as indicated by the shift of tg of the copolymers, which results from the cross 條inking effect of PMMA and USPU molecular chains.
出处
《合成树脂及塑料》
EI
CAS
1996年第2期16-20,共5页
China Synthetic Resin and Plastics
关键词
聚甲基
丙烯酸甲酯
不饱和聚氨酯
共聚
结构表征
polymethyl methacrylate
unsaturated polyurethane
copolymerization
crosslink
