摘要
采用聚乙烯醇与环氧乙烷非均相加合反应合成了不同环氧乙烷结合量的羟乙基化聚乙烯醇（ＨＥＰＶＡ）．在通过１３Ｃ－ＮＭＲ和ＩＲ对产物进行表征的基础上，讨论了反应与ＰＶＡ空间立构性及结晶性间的关系，证明了ＨＥＰＶＡ中聚氧乙烯链的存在，且其含量增长速率随反应深度的增加而增大．
hrough heterophasic adduction between the hydroxyl group of poly (vinyl alcohol)(PVA) and ethylene oxide (EO),hydroxyethyl poly (vinyl alcohol) (HEPVA) with different contents of combined EO were obtained. The relationship between tacticity of PVA and its ethoxylation reactivity was discussed based on structural characterization of HEPVA by 13C-NMR and IR Spectroscopy.The different rates of increase on the content of polyoxyethylene chain in different reaction stages were also disscused.
出处
《高分子学报》
SCIE
EI
CAS
CSCD
北大核心
1995年第3期296-301,共6页
Acta Polymerica Sinica
基金
国家自然科学基金
关键词
空间立构
聚乙烯醇
羟乙基化
HEPVA
EO
Microtacticity of polymer,￣13C-NMR,Reaction with polymer,Hydroxyethyl poly (vinyl alcohol)
