含β双键反应型流滴剂的制备、结构表征及其接枝物的性能研究  

Preparation and Structure Characterization of Reactive Type Dropping Agent Containing β Double Bond and Its Grafting Copolymer Properties

作　　者：姚占海[1,2] 殷敬华[1,2] 宋永贤[1] 宋玉春[1] 

机构地区：[1]中国科学院长春应用化学研究所、高分子物理与化学国家重点实验室,吉林长春130022 [2]中国科学院研究生院,北京100039

出　　处：《中国塑料》2007年第4期82-86,共5页China Plastics

基　　金：国家自然科学基金重大项目（50390090）

摘　　要：以聚醚四元醇（PETO）和马来酸酐（MAH）为起始物，对甲苯磺酸为催化剂，对苯二酚为阻聚剂，制备了含B双键的反应型流滴剂（βS）；研究了反应物配比、催化剂加入量和反应时间对转化率的影响；用红外光谱（FTIR）、核磁共振氢谱（H^1-NMR）对图的结构进行了表征；通过测定反应后体系中MAH的残留量，计算了目标产物的转化率。结果发现：用该方法测定的反应转化率达95％以上，并且产物收率达到90％以上。将脑与线形低密度聚乙烯（PE-LLD）进行反应接枝（PE-LLD-g-βS）后吹膜，发现在60℃加速流滴条件下，PE—LLD-g-陋膜的流滴期为76d，而普通流滴膜为17d。Reactive type dropping agent containing 13 double bond （βS） was synthesized. Polyether tetrols （PETO） and maleic anhydride （MAH） were used as start materials, p-toluene sulfonic acid as catalyst and hydroquinone as inhibitor. The effects of monomer ratio, amount of catalyst and reaction time on conversion were studied. FTIR and H^1-NMR were used to confirm the chemical structure of βS. The conversion of the products was calculated based on the residual fraction of MAH. The conversion of the reaction was higher than 95 %, and yield higher than 90 %. The films of PE-LLD-g-βS were prepared. The dripping durability of PE-LLD-g-βS film and common dripping film at 60 ℃ were 76 days and 17 days, respectively.

关 键 词：反应型流滴剂 接枝 聚乙烯 薄膜 流滴性 

分 类 号：TQ323.42[化学工程—合成树脂塑料工业]