Synthesis of styryl-capped polypropylene via metallocene-mediated coordination polymerization: Apply to polypropylene macromolecular engineering
Synthesis of styryl-capped polypropylene via metallocene-mediated coordination polymerization: Apply to polypropylene macromolecular engineering
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茂金属介导的配位聚合合成苯乙烯基封端聚丙烯：应用于聚丙烯高分子工程
DOI：
10.1007/s10118-013-1261-4
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发表时间：
2013-03
期刊：
影响因子：
--
通讯作者：
Dong, Jin-yong
中科院分区：
文献类型：
--
作者：
Huang, Hua-hua;Zhang, Chuan-hui;Qin, Ya-wei;Niu, Hui;Dong, Jin-yong
本文综述了苯乙烯基封端聚丙烯（PP-t-St）的合成及应用研究进展。PP-t-St是一种性能优良的反应性聚烯烃，具有合成方便、效率高、应用方便等特点，是通过高分子工程制备聚丙烯新材料的理想材料。PP-t-St的合成通过由双苯乙烯类分子（例如1，4-二乙烯基苯（DVB）和1，2-双（4-乙烯基苯基）乙烷（BVPE））和典型的C2-对称茂金属（例如外消旋-Me 2Si（2-Me-4-Ph-Ind）2 ZrCl 2，与甲基铝烯（MAO）结合）催化的丙烯聚合中的氢配位的独特链转移反应而成为可能。DVB或BVPE中的苯乙烯双键区域选择性地2，1-插入到绝大多数1，2-型Zr-PP增长链中使得催化剂活性位点能够基本上休眠，这引发选择性氢链转移，其中所形成的Zr-H物质最终通过丙烯单体的插入而饱和，导致所提供的PP链在末端处被苯乙烯基唯一封端。PP-t-St在链端具有高反应性苯乙烯基，已被用作PP大分子工程中的简单结构单元，与最先进的合成聚合物化学一起用于制造广泛类型的新型聚丙烯结构。
In this paper, we review our recent progress in the synthesis and application of styryl-capped polypropylene (PP-t-St), an excellent reactive polyolefin that is both convenient and efficient in synthesis and facile and versatile in application for preparing advanced polypropylene materials via macromolecular engineering. The synthesis of PP-t-St is made possible by a unique chain transfer reaction coordinated by a bis-styrenic molecule, such as 1,4-divinylbenzene (DVB) and 1,2-bis(4-vinylphenyl)ethane (BVPE), and hydrogen in typical C2-symmetric metallocene (e.g.rac-Me2Si(2-Me-4-Ph-Ind)2ZrCl2, in association with methylaluminocene, MAO) catalyzed propylene polymerization. The regio-selective 2,1-insertion of the styrenic double bond in DVB or BVPE into the overwhelmingly 1,2-fashioned Zr-PP propagating chain enables substantial dormancy of the catalyst active site, which triggers selective hydrogen chain transfer that, with the formed Zr-H species ultimately saturated by the insertion of propylene monomer, results in an exclusive capping of the afforded PP chains by styryl group at the termination end. With a highly reactive styryl group at chain end, PP-t-St has been used as a facile building block in PP macromolecular engineering together with the employment of state-of-the-art synthetic polymer chemistry to fabricate broad types of new polypropylene architectures.
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影响因子：
3.2
作者：
Zhang, Chuanhui;Niu, Hui;Dong, Jin-Yong
通讯作者：
Dong, Jin-Yong
DOI：
10.1002/pola.24706
发表时间：
2011-06
期刊：
Journal of Polymer Science Part A
影响因子：
--
作者：
Huahua Huang;H. Niu;Jin‐Yong Dong
通讯作者：
Huahua Huang;H. Niu;Jin‐Yong Dong
影响因子：
4.6
作者：
Chengang Cao;Jin‐Yong Dong;T. Chung
通讯作者：
Chengang Cao;Jin‐Yong Dong;T. Chung
影响因子：
5.5
作者：
Huahua Huang;H. Niu;Jin‐Yong Dong
通讯作者：
Huahua Huang;H. Niu;Jin‐Yong Dong
影响因子：
5.5
作者：
Dong, JY;Wang, ZM;Chung, TC
通讯作者：
Chung, TC