| 溶液中聚(N-异丙基-2-甲基丙烯酰胺)热相变可逆性的杂合二维相关红外光谱研究 |
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| 引用本文： | 王立旭,王德秋,吴玉清.溶液中聚(N-异丙基-2-甲基丙烯酰胺)热相变可逆性的杂合二维相关红外光谱研究[J].高等学校化学学报,2005,26(12):2319-2322. |
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| 作者姓名： | 王立旭 王德秋 吴玉清 |
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| 作者单位： | 1.吉林大学超分子结构与材料教育部重点实验室,长春130012;
2.长春市环境保护研究所，长春130022 |
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| 基金项目： | 中国科学院资助项目;科技部科研项目;教育部长江学者和创新团队发展计划 |
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| 摘 要： | 基于聚(N-异丙基-2-甲基丙烯酰胺)(PNiPMA)在升温和降温两个过程中测得的变温红外光谱构筑样本-样本杂合二维相关(Hybrid 2D Correlation)光谱,揭示其在热诱导相变过程中初始组分的恢复程度、相转变温度以及转变速率等物理参数的可逆性.
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| 关 键 词： | PNiPMA 热相变可逆性 FTIR 杂合二维相关光谱 PNiPMA 热相变可逆性 FTIR 杂合二维相关光谱 |
| 文章编号： | 0251-0790（2005）12-2319-04 |
| 收稿时间： | 11 29 2004 12:00AM |
| 修稿时间： | 2004-11-29 |
Hybrid Two-dimensional Correlation Infrared Spectrum of Reversibility of Thermal-induced Phase Transition of Poly(N-isopropylmethacrylamide) in Aqueous Solutions |
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| WANG Li-Xu,WANG De-Qiu,WU Yu-Qing.Hybrid Two-dimensional Correlation Infrared Spectrum of Reversibility of Thermal-induced Phase Transition of Poly(N-isopropylmethacrylamide) in Aqueous Solutions[J].Chemical Research In Chinese Universities,2005,26(12):2319-2322. |
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| Authors: | WANG Li-Xu WANG De-Qiu WU Yu-Qing |
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| Institution: | 1. Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, Jilin University, Changchun 130012, China;
2. Changchun Institute of Enviromental Protection, Changchun 130022, China |
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| Abstract: | Temperature-induced reversibility of coil-globule transition was studied for poly(N-isopropylmethacrylamide)(PNiPMA) in aqueous solutions by means of Fourier transform infrared(FTIR) spectroscopy and hybrid two-dimensional(2D) correlation spectroscopy.The degree of the symmetry along the diagonal line for PNiPMA in sample-sample(SS) hybrid two-dimensional IR correlation spectrum which was constructed from IR spectra measured in heating and cooling processes reflects the recovery rate of original species,transition temperature,and the rate of the concentration changes during the phase transition.The present study demonstrates a novel application of hybrid two-dimensional correlation spectroscopy in exploring the reversibility of phase transitions in polymer,such kind of study has a great potential application to revealing the phase transition dynamics and molecular interactions of polymers and proteins. |
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| Keywords: | PNiPMA FTIR |
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