摘要
采用（ＮＨ４）２Ｃｅ（ＮＯ３）６／Ｈ２ＳＯ４这一水溶性高效引发体系引发尼龙－６膜与丙烯酸的接枝共聚合反应。合成了一系列不同接枝率的接枝膜，其中接枝率最高可达３１２％。这一数值是文献报导的接枝率的４倍多。通过对该接枝膜的红外光谱、核磁共振及Ｘ射线光电子能谱的研究发现，尼龙－６与丙烯酸进行接枝反应的接枝点在尼龙－６大分子的氮原子上；接枝密度随接枝率的增加而增加，当接枝率达到一定程度时，接枝密度不再变化，计算得到尼龙－６接枝膜的最大接枝密度为５１．３％。
The nylon 6 membrane grafted with acrylic acid was conducted by using (NH 4) 2Ce(NO 3) 6/H 2SO 4 as initiator for the first time and a series of grafted membranes having different grafting yield were synthesized. The highest grafting yield can be achieved upto as high as 312%, such graftig yield is four times higher than those reported up to date. The grafting site and grafting density were determined via IR, 1H NMR and XPS. It was found that the nitrogen atom in nylon molecule would be the grafting site. The grafting density increases with increase of grafting yield. The grafting density did not change when grafting yield reached a definite degree. The maximum grafting density of grafting membrane is 51.3%.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1999年第4期34-37,共4页
Polymer Materials Science & Engineering
基金
河南省自然科学基金
关键词
丙烯酸
合成
聚酰胺6
接枝共聚
膜材料
nylon 6, acrylic acid, grafting membrane, synthesis, characteristics
