Internal structure of a thin film of mixed polymeric micelles on a solid/liquid interface

被引：20

作者：

Voets, Ilja K. ^{[1
]}

de Vos, Wiebe A. ^{[1
]}

Hofs, Bas ^{[1
]}

de Keizer, Arie ^{[1
]}

Stuart, Martien A. Conhen ^{[1
]}

Steitz, Roland ^{[3
]}

Lott, Dieter ^{[2
]}

机构：

[1] Univ Wageningen & Res Ctr, Lab Phys Chem & Colloid Sci, NL-6703 HB Wageningen, Netherlands

[2] GKSS Forschungszentrum Geesthacht GmbH, GeNF, D-21502 Geesthacht, Germany

[3] Hahn Meitner Inst Berlin GmbH, BENSC SFI, D-14109 Berlin, Germany

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2008年 / 112卷 / 23期

关键词：

D O I：

10.1021/jp709758p

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The adsorption of mixed micelles of poly(4-(2-amino hydrochloride-ethylthio)-butylene)-blockpoly(ethylene oxide), PAETB(49)-b-PEO212 and poly(4-(2-sodium carboxylate-ethylthio)-butylene)-blockpoly(ethylene oxide), PCETB47-b-PEO212 on solid/liquid interfaces has been studied with light, X-ray, and neutron reflectometry. The structure of the adsorbed layer can be described with a two-layer model consisting of an inner layer formed by the coacervate of the polyelectrolyte blocks PAETB49 and PCETB47 (similar to 1 nm) and an outer layer of PEO212 blocks (similar to 6 nm). The micelles unfold upon adsorption forming a rather homogeneous flat layer that exposes its polyethylene oxide chains into the solution, thus rendering the surface antifouling after modification with the micelles.

引用

页码：6937 / 6945

页数：9

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