PH-INDUCED PERMEATION CONTROL OF A POLYION-COMPLEXED LANGMUIR-BLODGETT-FILM WITH A CHANNEL-LIKE PATHWAY OF POLY(METHACRYLIC ACID) SEGMENT

被引：25

作者：

NIWA, M

MUKAI, A

HIGASHI, N

机构：

[1] Department of Applied Chemistry, Faculty of Engineering, Doshisha University, Kamikyo-ku

来源：

LANGMUIR | 1990年 / 6卷 / 08期

关键词：

D O I：

10.1021/la00098a020

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel polyion-complexed Langmuir-Blodgett (LB) film having a channel-like pathway for transporting ions was prepared from a polyion-complexed monolayer composed of a newly synthesized triblock polyanion (poly(styrenesulfonate-6/block-methacrylic acid-block-styrenesulfonate), SnMmSn) and a doublechain, cationic amphiphile. The cationic amphiphile was found to complex preferentially with poly-(styrenesulfonate) segments but not with poly(methacrylic acid) segments at low pH. The polyion complexes formed stable surface monolayers which were affected by pH in the subphase. Control of the KC1 permeability across the LB film composed of those monolayers was performed by pH based on the conformational change of the poly(methacrylic acid) segment. © 1990, American Chemical Society. All rights reserved.

引用

页码：1432 / 1434

页数：3

共 11 条

[1] Films built by depositing successive monomolecular layers on a solid surface [J].