Chemically induced oscillations in a pH-responsive hydrogel

被引：83

作者：

Crook, CJ

Smith, A

Jones, RAL

Ryan, AJ ^{[1
]}

机构：

[1] Univ Sheffield, Dept Chem, Sheffield S3 7HF, S Yorkshire, England

[2] Univ Sheffield, Dept Phys, Sheffield S3 7RH, S Yorkshire, England

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2002年 / 4卷 / 08期

关键词：

D O I：

10.1039/b109977a

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：

A Landolt pH-oscillator based on a bromate/sulfite/ferrocyanide reaction has been developed with a room temperature period of 20 min and a range of 3.1 less than or equal to pH less than or equal to 7.0. This system has been used to drive periodic oscillations in volume in a pH responsive hydrogel. The gel is coupled to the reaction and changes volume by a factor of at least 6. A continuously stirred, constant volume, tank reactor was set-up on an optical microscope and the reaction pH and gel size monitored.

引用

页码：1367 / 1369

页数：3

共 9 条

[1] TIME-RESOLVED FLUORESCENCE STUDY OF CHAIN DYNAMICS .1. POLY(METHACRYLIC ACID) IN DILUTE WATER SOLUTIONS [J].