聚乙烯醇缩丁烯醛初探  

A Primary Study on Poly(vinyl Crotonal)

作　　者：石海平[1,2,3] 苏涛[1,2,3] 朱东薇 魏绣枝 

机构地区：[1]广西卫生管理干部学院 [2]广西大学化学系 [3]广西林业厅

出　　处：《广西大学学报（自然科学版）》1997年第2期131-134,共4页Journal of Guangxi University（Natural Science Edition）

摘　　要：对聚乙烯醇缩丁烯醛进行的初步研究表明，聚乙烯醇不难进行缩丁烯醛化．高缩醛度的聚乙烯醇缩丁烯醛较易凝胶化，说明其分子间交联程度较高，可能的原因是作为α，β不饱和醛的丁烯醛与聚乙烯醇进行缩醛化反应时存在着１，２加成与１。A primary study on poly(vinyl crotonal),which has seldom been studied so far,shows that to conduct a crotonalization for poly vinyl alcohol is not difficult.Poly(vinyl crotonal) of high degree of acetalization is relatively easy to gelation,suggesting its higher degree of crosslinking.The possible reason is that there are two types of additions,1,2 and 1,4additions,during crotonalization of poly vinyl alcohol since crotonaldehyde is an α,β unsaturated aldehyde.

关 键 词：丁烯醛 聚乙烯醇 缩醛化反应 聚乙烯醇缩醛 

分 类 号：O632.34[理学—高分子化学]