| 巯基聚甲基丙烯酸甲酯纳米球在水溶液中的相分离研究 |
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| 引用本文： | 方静,胡成龙,韩栋,吴丽君,陈婷,彭望明.巯基聚甲基丙烯酸甲酯纳米球在水溶液中的相分离研究[J].分析测试技术与仪器,2014(2):83-87. |
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| 作者姓名： | 方静 胡成龙 韩栋 吴丽君 陈婷 彭望明 |
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| 作者单位： | 江汉大学 光电化学材料与器件省部共建教育部重点实验室, 化学与环境工程学院, 湖北 武汉 430056;江汉大学 光电化学材料与器件省部共建教育部重点实验室, 化学与环境工程学院, 湖北 武汉 430056;江汉大学 光电化学材料与器件省部共建教育部重点实验室, 化学与环境工程学院, 湖北 武汉 430056;江汉大学 光电化学材料与器件省部共建教育部重点实验室, 化学与环境工程学院, 湖北 武汉 430056;江汉大学 光电化学材料与器件省部共建教育部重点实验室, 化学与环境工程学院, 湖北 武汉 430056;江汉大学 光电化学材料与器件省部共建教育部重点实验室, 化学与环境工程学院, 湖北 武汉 430056 |
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| 摘 要： | 采用无皂乳液聚合法制备了单分散、直径为140 nm左右的巯基聚甲基丙烯酸甲酯纳米球(mercapto polymethylmethacrylate,PMMA-SH),并且利用荧光光谱法对其水分散液进行了相分离研究.实验结果表明所制备的PMMA-SH纳米球具有温敏性,当体系从0℃向30℃变化时,体系由低温热力学平衡态转变成高温非热力学平衡态,出现相分离现象,其相分离温度约为14~16℃.
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| 关 键 词： | 聚甲基丙烯酸甲酯 巯基 相分离 荧光光谱 |
| 收稿时间： | 5/5/2014 12:00:00 AM |
| 修稿时间： | 2014/5/26 0:00:00 |
Phase Separation of Mecapto Polymethylmethacrylate Nanospheres Dispersed in Aqueous Solution |
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| FAN Jing,HU Cheng-long,HAN Dong,WU Li-jun,CHEN Ting and PENG Wang-ming.Phase Separation of Mecapto Polymethylmethacrylate Nanospheres Dispersed in Aqueous Solution[J].Analysis and Testing Technology and Instruments,2014(2):83-87. |
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| Authors: | FAN Jing HU Cheng-long HAN Dong WU Li-jun CHEN Ting and PENG Wang-ming |
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| Institution: | Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, School of Chemical and Environmental Engineering, Jianghan University, Wuhan 430056;Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, School of Chemical and Environmental Engineering, Jianghan University, Wuhan 430056;Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, School of Chemical and Environmental Engineering, Jianghan University, Wuhan 430056;Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, School of Chemical and Environmental Engineering, Jianghan University, Wuhan 430056;Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, School of Chemical and Environmental Engineering, Jianghan University, Wuhan 430056;Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, School of Chemical and Environmental Engineering, Jianghan University, Wuhan 430056 |
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| Abstract: | The mercapto polymethylmethacrylate （PMMA-SH） nanospheres with a diameter of about 140 nm were prepared by the soap-free emulsion polymerization. The phase separation of PMMA- SH nanospheres in the aqueous solution was detected by fluorescence spectrometry. It is found that the PMMA-SH nanospheres can be separated from the aqueous solution during heating, and the phase separation temperature was between 14 and 16 ℃. |
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| Keywords: | polymethylmethacrylate mercapto phase separation fluorescence spectrum |
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