Switch from Anionic Polymerization to Coordinative Chain Transfer Polymerization: a Valuable Strategy to Make Olefin Block Copolymers

被引：16
作者：
Baulu, Nicolas [1 ,2 ]
Langlais, Marvin [1 ,3 ]
Ngo, Robert [2 ,3 ]
Thuilliez, Julien [2 ]
Jean-Baptiste-dit-Dominique, Francois [2 ,3 ]
D'Agosto, Franck [1 ,3 ]
Boisson, Christophe [1 ,3 ]
机构：
[1] Univ Lyon 1, Univ Lyon, CPE Lyon, CNRS UMR 5128,Lab CP2M,Equipe PCM, F-69616 Villeurbanne, France
[2] Manufacture Pneumat Michelin, 23 Pl Carmes Dechaux, F-63000 Clermont Ferrand, France
[3] Michelin CP2M ICBMS Joint Lab, ChemistLab, F-69616 Villeurbanne, France
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2022年 / 61卷 / 26期
关键词：
Anionic Polymerization; Block Copolymers; CCTP; Metallocene; Polyolefins; ZIEGLER-NATTA POLYMERIZATION; CYCLO-COPOLYMERIZATION; ETHYLENE; POLYETHYLENE; CATALYSTS; ISOPRENE; STYRENE;
D O I：
10.1002/anie.202204249
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Anionic polymerization of butadiene or/and styrene is performed with lithium initiators, functional or not. The polymer chains are subsequently transferred to magnesium. The resulting polymeryl-magnesium compounds were combined with {(Me2Si(C13H8)(2))Nd(mu-BH4)[(mu-BH4)Li(THF)]}(2) metallocene complex to act as macromolecular chain transfer agents (macroCTAs) in coordinative chain transfer polymerization (CCTP) of ethylene (E) or its copolymerization (CCTcoP) with butadiene (B). Block copolymers were produced for the first time by this switch from anionic polymerization to CCTP. Hard and soft blocks such as PB, polystyrene (PS), poly(styrene-co-butadiene) (SBR) obtained by anionic polymerization and PE or poly(ethylene-co-butadiene) (EBR) produced by CCT(co)P were combined and the corresponding structures were characterized.
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页数：6
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