物理交联刚果红—聚乙烯醇凝胶膜的敏感特性研究

刘捷; 刘广力; 李霞; 刘琳; 汤克勇

doi:10.13873/j.1000-97872014.06.005

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物理交联刚果红—聚乙烯醇凝胶膜的敏感特性研究

研究与探讨 | 更新时间：2025-09-11

- 物理交联刚果红—聚乙烯醇凝胶膜的敏感特性研究
- Study on sensitive characteristics of physically crosslinked congo red-PVA gel membrane
- 传感器与微系统 2014年33卷第6期页码：38-40+44
- 作者机构：
  
  郑州大学材料科学与工程学院
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目（U1204504,50973097）
- DOI：10.13873/j.1000-97872014.06.005
  中图分类号： TQ427.26
- 纸质出版：2014
- 稿件说明：
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[1]刘捷,刘广力,李霞,刘琳,汤克勇.物理交联刚果红—聚乙烯醇凝胶膜的敏感特性研究[J].传感器与微系统,2014,33(06):38-40+44.

LIU Jie, LIU Guang-li, LI Xia, et al. Study on sensitive characteristics of physically crosslinked congo red-PVA gel membrane[J]. 2014, 33(6): 38-40+44.
[1]刘捷,刘广力,李霞,刘琳,汤克勇.物理交联刚果红—聚乙烯醇凝胶膜的敏感特性研究[J].传感器与微系统,2014,33(06):38-40+44. DOI： 10.13873/j.1000-97872014.06.005.

LIU Jie, LIU Guang-li, LI Xia, et al. Study on sensitive characteristics of physically crosslinked congo red-PVA gel membrane[J]. 2014, 33(6): 38-40+44. DOI： 10.13873/j.1000-97872014.06.005.

摘要

以二甲基亚砜（DMSO）水溶液为溶剂

采用冷冻—解冻法制备高度透明的物理交联聚乙烯醇（PVA）凝胶膜

将该膜在刚果红溶液中浸泡

制备了物理交联刚果红—聚乙烯醇（PCGR—PVA）凝胶膜。利用紫外—可见光谱法测试该凝胶膜的pH敏感特性

并与化学交联的刚果红—聚乙烯醇（CCGR—PVA）凝胶膜做了对比分析。结果表明:PCGR—PVA和CCGR—PVA凝胶膜均具有良好的pH敏感性

在pH为0.29

.33范围内对pH呈较好的线性响应

PCGR—PVA凝胶膜的灵敏度更高。PCGR—PVA凝胶膜的响应时间在弱酸中小于10 s

在强酸中小于200 s。表明PCGR—PVA凝胶是优异的pH传感材料。

Abstract

High transparent physically crosslinked polyvinyl alcohol（ PVA） gel membranes are prepared by freezing / thawing method in dimethyl sulfoxide（ DMSO） aqueous solution

then the membranes are immersed in the congo red solution and congo red—PVA（ PCGR—PVA） gels are fabricated. And compared with CCGR—PVA

UV / Vis spectroscopy studies of PCGR—PVA and CCGR—PVA gel membranes indicate that both of them show good pH sensitivity and good linear response in pH 0. 29

4. 33

whereas the latter is more sensitive to pH changes compared with CCGR—PVA membranes. The response time of PCGR—PVA gel membranes is less than 10 s in weak acid

it is less than 200 s in strong acid. The results show that

PCGR—PVA gel is an excellent pH sensing material.

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references

物理交联聚乙烯醇/明胶复合水凝胶透明性的溶剂敏感性 [J]. 刘捷,杨旭阳,汤克勇,王学普,张浩可. 高分子材料科学与工程 . 2012(09)

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