One-pot synthesis of ABC type triblock copolymers via in situ click [3+2] and Diels-Alder [4+2] reactions

被引：204

作者：

Durmaz, Hakan ^{[1
]}

Dag, Aydan ^{[1
]}

Altintas, Ozcan ^{[1
]}

Erdogan, Tuba ^{[1
]}

Hizal, Gurkan ^{[1
]}

Tunca, Umit ^{[1
]}

机构：

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

来源：

MACROMOLECULES | 2007年 / 40卷 / 02期

关键词：

D O I：

10.1021/ma061819l

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 one-pot synthesis of ABC triblock copolymers of poly(ethylene glycol)- (PEG-) polystyrene- (PS-) poly(methyl methacrylate) (PMMA), and poly(epsilon-caprolactone)- (PCL-) PS-PMMA by combining in situ click [3 + 2] and Diels-Alder [4 + 2] reactions. For this purpose, furan-protected maleimide end-functionalized PMMA, PS with alpha-anthracene and omega-azide end-functionality, and PEG or PCL with an alkyne end-functional group were reacted in N,N-dimehtylformamide (DMF) for 36 h at 120 degrees C in order to give the corresponding triblock copolymers. All polymeric precursors with narrow molecular weight distribution and well-defined chain-end functionalities were achieved from living polymerization methods, except PEG. The obtained polymers were characterized by H-1 NMR (250 MHz), gel permeation chromatography (GPC), and differential scanning calorimetry (DSC) measurements.

引用

页码：191 / 198

页数：8

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