Combining Polyethylene CCG and Stereoregular Isoprene Polymerization: First Synthesis of Poly(ethylene)-b-(trans-isoprene) by Neodymium Catalyzed Sequenced Copolymerization

被引：24

作者：

Chenal, Thomas ^{[1
,2
,3
,4
]}

Visseaux, Marc ^{[1
,2
,3
,4
]}

机构：

[1] Univ Lille Nord France, F-5900 Lille, France

[2] ENSCL, UCCS, CCM, F-59652 Villeneuve Dascq, France

[3] USTL, UCCS, CCM, F-59655 Villeneuve Dascq, France

[4] CNRS, UMR8181, F-59652 Villeneuve Dascq, France

来源：

MACROMOLECULES | 2012年 / 45卷 / 14期

关键词：

CHAIN TRANSFER POLYMERIZATION; STEREOSPECIFIC POLYMERIZATION; DIBLOCK COPOLYMERS; BLOCK-COPOLYMERS; GROUP METAL; ETHYLENE; SYSTEMS; POLYOLEFINS; MAGNESIUM; STYRENE;

D O I：

10.1021/ma3005185

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Bis(polyethylenyl)magnesium prepared by Nd/Mg mediated polyethylene chain growth catalysis has been successfully used as cocatalyst in combination with Nd-(BH4)(3)(THF)(3) to afford unprecedented sequenced (polyethylene)-b-(trans-polyisoprene) copolymers. Size exclusion chromatography, differential scanning calorimetry, and NMR, as well as gas chromatography and MALDI-TOF spectrometry of oligomers, are utilized to establish the grafting of the stereoregular polydiene sequence to the polyethylene fragment.

引用

页码：5718 / 5727

页数：10