Synthesis and Polymerization of Norbornenyl-Terminated Multiblock Poly(cyclohexene carbonate)s: A Consecutive Ring-Opening Polymerization Route to Multisegmented Graft Polycarbonates

被引：48
|
作者：
Kim, Jeung Gon [1 ]
Coates, Geoffrey W. [1 ]
机构：
[1] Cornell Univ, Baker Lab, Dept Chem & Chem Biol, Ithaca, NY 14853 USA
来源：
MACROMOLECULES | 2012年 / 45卷 / 19期
基金：
美国国家科学基金会;
关键词：
TRANSFER RADICAL POLYMERIZATION; CYLINDRICAL MOLECULAR BRUSHES; DIIMINATE ZINC CATALYSTS; COPOLYMER SIDE-CHAINS; METATHESIS POLYMERIZATION; ALTERNATING COPOLYMERIZATION; ANIONIC-POLYMERIZATION; OXIDE) MACROMONOMERS; POLYSTYRENE MACROMONOMERS; STRUCTURAL CONTROL;
D O I：
10.1021/ma301137q
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
We report a method for the synthesis of multisegmented polycarbonate graft copolymers. Using a beta-diiminate zinc catalyst with a norbornene carboxylate initiator, we achieved living block copolymerizations of functionalized cyclohexene oxides and CO2, yielding norbornenyl-terminated macromonomers with variable block sequences. Subsequent ring-opening metathesis polymerization of the norbornenyl-terminated macromonomers produced segmented graft copolymers. This method provides a facile route to core-shell structures with readily controllable molecular parameters.
引用
收藏
页码：7878 / 7883
页数：6
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