• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Synthesis of Macromonomer from Radical Polymerization of Styrene with a Polymerizable Photoiniferter
【24h】

Synthesis of Macromonomer from Radical Polymerization of Styrene with a Polymerizable Photoiniferter

机译：苯乙烯与可聚合光引发剂自由基聚合反应合成大分子单体

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

#alpha#-(Methacrylyoxylethyloxycarbonylmethyl)-#omega#-(N,N-diethyldithiocarbamyl)- polystyrene macromonomers with different molecular weights were prepared by radical polymerization of styrene (St) using #beta#-methacryloxylethyl 2-N,N-diethyldithiocarbam- ylacetate (MAEDCA)as a polymerizable photoiniferter in toluene under ultraviolet light.The polymerization of St with MAEDCA carried out by a "living" process;that is,both the yield and the molecular weight of the resultant polymers increased with increasing of reaction time,and the resultant polymer was a macromonomer, for example,#alpha#-(methacrylyoxylethloxycarbonylmethyl)-#omega#-(N,N-diethyldithiocarbamyl)- polystyrene, designated as PSt-macromonomer.The molecular weight of the PStmacromonomer depended on the concentrations of the polymerizable photoiniferter and St,as well as the conversion of St.The PSt-macromonomer can copolymerize with MMA initiated by AIBN at 65deg C to form a graft copolymer (PMMA-graft-PSt)with PSt branches randomly distributed along the PMMA backbone.
机译：使用＃beta＃-甲基丙烯酰氧基乙基2-N，N-二乙基二硫代氨基甲酸酯-通过自由基聚合苯乙烯（St）制备具有不同分子量的#alpha＃-（甲基丙烯酰氧基乙氧基羰基甲基）-＃omega＃-（N，N-二乙基二硫代氨基甲酰基）-聚苯乙烯大分子单体。乙酸乙烯酯（MAEDCA）在紫外线下在甲苯中作为可聚合的光引发剂。St与MAEDCA的聚合通过“活性”过程进行;即，随着反应时间的增加，所得聚合物的收率和分子量均增加，并且得到的聚合物是大分子单体，例如，＃α＃-（甲基丙烯酸氧基乙氧基羰基甲基）-＃omega＃-（N，N-二乙基二硫代氨基甲酰基）-聚苯乙烯，称为PSt-大分子单体。PSt-大分子单体的分子量取决于PSt-大分子单体可以与AIBN引发的MMA在65°C下共聚形成PSt branc的接枝共聚物（PMMA-graft-PSt）沿PMMA主干随机分布。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号