Block-Brush Copolymers via ROMP and Sequential Double Click Reaction Strategy

被引：49

作者：

Dag, Aydan ^{[1
]}

Sahin, Hatice ^{[1
]}

Durmaz, Hakan ^{[1
]}

Hizal, Gurkan ^{[1
]}

Tunca, Umit ^{[1
]}

机构：

[1] Istanbul Tech Univ, Dept Chem, TR-34469 Istanbul, Turkey

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2011年 / 49卷 / 04期

关键词：

azide-alkyne click reaction; block-brush copolymers; brush copolymers; Diels-Alder click reaction; graft copolymers; Grubbs' catalyst; poly(epsilon-caprolactone); poly(methyl methacrylate); polyoxanorbornene; poly(tert-butyl acrylate); ring opening metathesis polymerization (ROMP); triple detection GPC (TD-GPC); RING-OPENING METATHESIS; CYLINDRICAL MOLECULAR BRUSHES; DEFINED GRAFT-COPOLYMERS; MULTIARM STAR BLOCK; ONE-POT SYNTHESIS; POLY(ETHYLENE GLYCOL); TRIBLOCK COPOLYMERS; PRECISE SYNTHESIS; TANDEM SYNTHESIS; POLYMERIZATION;

D O I：

10.1002/pola.24499

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 an efficient way, sequential double click reactions, for the preparation of brush copolymers with AB black-brush architectures containing polyoxanorbornene (poly (ONB)) backbone and poly(epsilon-caprolactone) (PCL), poly(methyl methacrylate) (PMMA) or poly(tert-butyl acrylate) (PtBA) side poly(ONB-g-PMMA)-b-poly(ONB-g-PCL) and poly(ONB-g-F tBA)-b-poly(ONB-g-PCL). The living ROMP of ONB affords the synthesis of well-defined poly(ONB-anthracene)(20)-b-Poly (ONB-azide)(5) block copolymer with anthryl and azide pendant groups. Subsequently, well-defined linear alkyne end-functionalized PCL (PCL-alkyne), maleimide end-functionalized PMMA (PMMA-MI) and Pt8A-MI were introduced onto the block copolymer via sequential azide-alkyne and Diels-Alder click reactions, thus yielding block-brush copolymers. The molecular weight of block-brush copolymers was measured via triple detection GPC (TD-GPC) introducing the experimentally calculated dn/dc values to the software. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 886-892, 2011

引用

页码：886 / 892

页数：7

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