| 用分光光度法研究温敏微凝胶的胶体稳定性 |
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| 引用本文： | 陈洁,肖智成,熊波,查刘生.用分光光度法研究温敏微凝胶的胶体稳定性[J].同济大学学报(自然科学版),2003,31(5):619-622. |
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| 作者姓名： | 陈洁 肖智成 熊波 查刘生 |
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| 作者单位： | 1. 同济大学,化学系,上海,200092
2. 安徽大学,现代实验技术中心,安徽,合肥,230039 |
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| 摘 要： | 利用分光光度仪对加入不同浓度及不同种类电解质的同系列温敏微凝胶进行了吸光度测定 ,通过吸光度的变化值求出使胶体发生絮凝的临界电解质浓度及临界絮凝温度 ,从而判断不同胶体的稳定性大小 .
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| 关 键 词： | 分光光度法 温敏性微凝胶 胶体稳定性 |
| 文章编号： | 0253-374X(2003)05-0619-04 |
| 修稿时间： | 2002年6月26日 |
Study on Colloidal Stability of Thermo-sensitive Microgel Aqueous Dispersion by Spectrophotometer |
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| CHEN Jie ,XIAO Zhi cheng ,XIONG Bo ,ZHA Liu sheng.Study on Colloidal Stability of Thermo-sensitive Microgel Aqueous Dispersion by Spectrophotometer[J].Journal of Tongji University(Natural Science),2003,31(5):619-622. |
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| Authors: | CHEN Jie XIAO Zhi cheng XIONG Bo ZHA Liu sheng |
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| Institution: | CHEN Jie 1,XIAO Zhi cheng 1,XIONG Bo 1,ZHA Liu sheng 2 |
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| Abstract: | Spectrophotometer was used to determine the absorbance of poly(N isopropylacrylamide) microgel aqueous dispersion in the presence of different kinds of electrolytes or different ionic strength.The colloidal stability of the microgel dispersion was estimated from the critical flocculation concentration or critical flocculation temperature which were obtained by measuring the variance against ionic strength or temperature. |
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| Keywords: | spectrometer thermo sensitive microgel colloidal stability |
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