ABA Triblock Copolymers from Two Mechanistic Techniques: Polycondensation and Atom Transfer Radical Polymerization

被引：17

作者：

Agudelo, Natalia A. ^{[1
]}

Elsen, Andrea M. ^{[2
]}

He, Hongkun ^{[2
]}

Lopez, Betty L. ^{[1
]}

Matyjaszewski, Krzysztof ^{[2
]}

机构：

[1] Univ Antioquia, Fac Ciencias Exactas & Nat, Inst Quim, Grp Invest Ciencia Mat, Medellin, Colombia

[2] Carnegie Mellon Univ, Dept Chem, Ctr Macromol Engn, Pittsburgh, PA 15213 USA

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2015年 / 53卷 / 02期

基金：

美国国家科学基金会; 美国安德鲁·梅隆基金会;

关键词：

atom transfer radical polymerization; block copolymer; dual mechanism; polycondensation; PROTON-EXCHANGE MEMBRANES; GROWTH CONDENSATION POLYMERIZATION; ETHER SULFONE) COPOLYMERS; MULTIBLOCK COPOLYMERS; MICROPHASE-SEPARATION; POLY(IONIC LIQUID)S; BLOCK-COPOLYMERS; POLYDISPERSITY; TRANSITION; POLYETHER;

D O I：

10.1002/pola.27300

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

ABA triblock copolymers were synthesized using two polymerization techniques, polycondensation, and atom transfer radical polymerization (ATRP). A telechelic polymer was synthesized via polycondensation, which was then functionalized into a difunctional ATRP initiator. Under ATRP conditions, outer blocks were polymerized to form the ABA triblock copolymer. Six types of samples were prepared based on a poly(ether ether ketone) or poly(arylene ether sulfone) center block with either poly(methyl methacrylate), poly(pentafluorostyrene), or poly(ionic liquid) outer blocks. As polycondensation results in polymers with broad molecular weight distribution (MWD), the center of these triblock copolymers are disperse, while the outside blocks have narrow MWD due to the control afforded from ATRP. (c) 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2015, 53, 228-238

引用

页码：228 / 238

页数：11

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