Poly(acrylic acid) with disulfide bond for the elaboration of pH-responsive brush surfaces

被引：17

作者：

Van Camp, Wim ^{[1
]}

Du Prez, Filip E. ^{[1
]}

Alem, Halima ^{[2
]}

Demoustier-Champagne, Sophie ^{[2
]}

Willet, Nicolas ^{[3
]}

Grancharov, Georgy ^{[3
]}

Duwez, Anne-Sophie ^{[3
]}

机构：

[1] Univ Ghent, Dept Organ Chem, Polymer Chem Res Grp, B-9000 Ghent, Belgium

[2] Catholic Univ Louvain, Unite Phys & Chim Hauts Polymeres, B-1348 Louvain, Belgium

[3] Univ Liege, Dept Chem NanoChem & Mol Syst, B-4000 Liege, Belgium

来源：

EUROPEAN POLYMER JOURNAL | 2010年 / 46卷 / 02期

关键词：

Poly(acrylic acid); pH-Responsive surface; Gold; AFM; 1-Ethoxyethyl acrylate; Disulfide; TRANSFER RADICAL POLYMERIZATION; GOLD NANOPARTICLES; COPOLYMER STRUCTURES; RAFT POLYMERIZATION; END-GROUPS; POLYMERS; ROUTE; TRITHIOCARBONATES; DITHIOESTERS; COMBINATION;

D O I：

10.1016/j.eurpolymj.2009.11.005

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 on a new route for the facile preparation of pH-responsive tethered brushes on metallic surfaces, starting from poly(acrylic acid) (PAA) containing a disulfide (S-S) bond (PAA-S-S-PAA). First, atom transfer radical polymerization (ATRP) of 1-ethoxyethyl acrylate (EEA) with a disulfide-containing initiator was performed to obtain the poly(EEA) precursor polymer (PEEA-S-S-PEEA). Deprotection of PEEA by a heating step resulted in the desired PAA chains without any further purification. The brushes, obtained by the 'grafting to' of PAA-S-S-PAA onto gold, were then characterized by atomic force microscopy in water at various pH values. The results evidence a large collapsing/swelling capacity. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：195 / 201

页数：7

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