橡胶技术网

弹性体
CHINA ELASTOMERICS
2006 Vol.16 No.1 P.1-4

橡胶技术网

嵌段共聚物PS-b-P2VP的合成及表征

陈志军  周思凯  彭凯  方少明  杨晓建  张惠勇 

摘 要:采用氮氧稳定自由基聚合技术合成了苯乙烯和2-乙烯吡啶嵌段共聚物(PS-b-P2VP),用凝胶渗透色谱(GPC)表征了聚合物的分子量及其分布,用红外光谱表征了其结构,结果表明,在氮氧稳定自由基 (HTEMPO·) 存在下,用过氧化苯甲酰(BPO)引发苯乙烯聚合,当[HTEMPO·]/[BPO]配比为1.8/1时为最佳比例,在此比例下所制备聚合物PS的分子量分布在1.17~1.36范围内;再将该聚苯乙烯溶于2-乙烯吡啶,在(130±2)℃时可以继续引发2-乙烯吡啶的聚合反应,且2-乙烯吡啶的聚合反应具有"活性"聚合的特征,共聚物的分子量分布范围在1.16~1.35内,分子量在12 930~19 670 g/mol范围.红外谱图说明共聚物为嵌段共聚物.
关键词:活性稳定自由基聚合;嵌段聚合物;聚苯乙烯;聚2-乙烯吡啶;增溶
分类号:TQ330  文献标识码:A

文章编号:1005-3174(2006)01-0001-04

The synthesis and characterization of the block copolymer of PS-b-P2VP

CHEN Zhi-jun  ZHOU Si-kai  PENG Kai  FANG Shao-ming  YANG Xiao-jian  ZHANG Hui-yong 

基金项目:国家自然科学基金资助项目(20476101)
作者简介:陈志军(1963-),男,河南信阳人,教授,博士,主要从事活性聚合反应、功能高分子合成等研究工作.
作者单位:陈志军(郑州轻工业学院,材料与化工学院,高分子材料与工程系,河南,郑州,450002) 
     周思凯(郑州轻工业学院,材料与化工学院,高分子材料与工程系,河南,郑州,450002) 
     彭凯(郑州轻工业学院,材料与化工学院,高分子材料与工程系,河南,郑州,450002) 
     方少明(郑州轻工业学院,材料与化工学院,高分子材料与工程系,河南,郑州,450002) 
     杨晓建(郑州轻工业学院,材料与化工学院,高分子材料与工程系,河南,郑州,450002) 
     张惠勇(郑州轻工业学院,材料与化工学院,高分子材料与工程系,河南,郑州,450002) 

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收稿日期:2005年10月10日

出版日期:2006年2月28日

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