摘要
用ＦＴＩＲ和ＤＳＣ对聚（１，３－二氧环庚烷）二醇为软段的聚氨酯的相态结构进行了分析．结果表明：与聚四氢呋喃二元醇类聚氨酯相比，主链中引入甲氧基后，软段相的结晶能力和硬段相中有序区的均匀程度下降．
Polyurethanes were prepared using poly(1,3\|dioxepane)diols(polyDOP) and \{poly(tetrahydrofuran)diols(polyTHF)\} as soft segment. The phase structures of these polyurethanes were analyzed by means of FTIR and DSC methods. The introduction of oxymethyl groups into the main chain of poly(THF) resulted in lower crystallization abilities of soft segment phase and heterogeneity of order region in hard segment phase. The effects of the chemical structure of soft segment on the crystallization of soft segment phase and \{order\} region in hard segment phase were discussed.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第3期470-473,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
