Producing bimodal molecular weight distribution polymers through facile one-pot/one-step RAFT polymerization
作者:Hongjuan Jiang、Lifen Zhang、Jian Qin、Wei Zhang、Zhenping Cheng、Xiulin Zhu
DOI:10.1002/pola.26212
日期:2012.10.1
indicated that the system showed excellent controllability and “living” characteristics to both higher and lower molecular weight fractions, providing an efficient and facile way to producing bimodal MWD (co)polymers with both controlled molecular weight (MW) and MWD in molecular level, and the plausible mechanism was discussed in this work. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012
使用一对单/双官能三硫代碳酸酯RAFT试剂1和2通过单锅RAFT聚合成功合成了定义明确的双峰分子量分布(MWD)的聚苯乙烯和聚苯乙烯b-聚丙烯腈。[St] 0:[AIBN] 0:[ 1 ] 0:[[ 2 ] 0的摩尔比的本体苯乙烯的RAFT聚合动力学在75℃下研究= 1200∶1∶2.5∶2.5。结果表明,该系统对较高和较低的分子量部分均显示出优异的可控制性和“活性”特性,为生产分子量水平可控的分子量和分子量的双峰MWD(共)聚合物提供了一种高效简便的方法。 ,并且在这项工作中讨论了可行的机制。©2012 Wiley Periodicals,Inc. J Polym Sci A部分:Polym Chem,2012年