Analysis of Molecular Motion around Chain Ends of Multibranched Polymers
Analysis of Molecular Motion around Chain Ends of Multibranched Polymers
复制标题
DOI：
10.1246/cl.170508
复制
发表时间：
2017-06
影响因子：
1.6
通讯作者：
J. Fukuda;K. Adachi;Y. Tsukahara;Yohei Miwa
中科院分区：
文献类型：
--
作者：
J. Fukuda;K. Adachi;Y. Tsukahara;Yohei Miwa
利用电子自旋共振（ESR）的自旋标记方法研究了多支聚苯乙烯（Mb-PSt）侧链末端的分子运动。采用高分子引发剂阴离子活性聚合法制备了Mb-PSt，并对其链端进行了TEMPO修饰。用ESR方法研究了侧链长度对链端迁移率的影响。结果表明，侧链越短，链端迁移率越高。
We focused on molecular motion around side chain ends of multibranched polystyrene (Mb-PSt) by a spin label method of electron spin resonance (ESR). The Mb-PSt was synthesized via living anionic polymerization with macroinitiator technique and the chain ends were modified with TEMPO. Effect of the side chain length on the mobility of the chain ends was studied by the ESR method. The result indicates that shorter side chain has higher mobility at the chain end.