Influence of alkyl chain length and molecular weight on the surface functionalization via adsorption/entrapment with biocidal cationic block copolymers

被引：10

作者：

Berndt, Eva ^{[1
]}

Behnke, Sven ^{[1
]}

Ulbricht, Mathias ^{[1
]}

机构：

[1] Univ Duisburg Essen, Lehrstuhl Tech Chem 2, D-45141 Essen, Germany

来源：

EUROPEAN POLYMER JOURNAL | 2011年 / 47卷 / 12期

关键词：

Surface modifications; Block copolymers; Micelles; Adsorption; Antimicrobial properties; AMPHIPHILIC DIBLOCK COPOLYMERS; STREAMING POTENTIAL MEASUREMENTS; RADICAL POLYMERIZATION; ADSORPTION-KINETICS; HYDROPHOBIC BLOCK; WATER; MICELLIZATION; MEMBRANES; MICELLES; CONTACT;

D O I：

10.1016/j.eurpolymj.2011.09.019

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polysulfone (PSf) films were functionalized with block copolymers containing poly(n-butyl acrylate) (PBA) as anchor block which is able to firmly tether the biocidal quaternized poly(2-dimethylaminoethyl methacrylate) (PDMAEMAq) to the surface. Block copolymers were synthesized using sequential atom transfer radical polymerization (ATRP) and quaternization with methyl and/or octyl groups rendered the polymers biocidal. Upon reversible swelling of the PSf surface layer in the adsorption/entrapment process, incorporation of the block copolymer is anticipated to be stable; homopolymers, i.e., methyl- or octyl-quaternized PDMAEMAq, were investigated for comparison. The addition of salt to the functionalization solution containing the block copolymer induced a decrease in the critical micelle concentration and lead to higher functionalization efficiency. The impact of intraor interchain interactions in these aggregates on adsorption and firm entrapment in PSf was determined by measuring contact angle, charge density and zeta potential. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：2379 / 2390

页数：12

共 42 条

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