| Isothermal Crystallization Kinetics of Microencapsulated Polyethylene Glycol Particles |
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| 引用本文： | 董知之 张志英 陈莉 宋正红 王曙光 蒋艾兵. Isothermal Crystallization Kinetics of Microencapsulated Polyethylene Glycol Particles[J]. 东华大学学报(英文版), 2007, 24(2): 157-160 |
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| 作者姓名： | 董知之 张志英 陈莉 宋正红 王曙光 蒋艾兵 |
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| 作者单位： | School of Materials Science and Chemical Engineering, Tianjin Key Laboratory of Fiber Modification and Functional Fiber, Tianjin Polytechnic University, Tianjin 300160, China |
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| 基金项目： | Foundation item： Science and Technical Development Foundation of Colleges and Universities, Tianjin, China （No. 20050511 ）; Development Program of Science ＆ Technology of Tianjin, China （ No. 06TXTJJC14400 ） ; Key Item of Tianjin Polytechnic University （No. 20060526） |
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| 摘 要： | The microenapsulated polyethylene glycol （PEG） with different molecular weight by a fluidized coating method has been prepared and the crystallization behaviors of PEG particles in three-dimensional confined vohume were investigated by using differential scanning calorimetry （DSC） measurement. The results showed that the width of the crystallization peak of PEG increases and its height gradually diminishes in case that the PEG particles are microencapsulated. Compared with the non-microencapsulated PEG particles, the proportion of the first crystallization peak of microencapsulated PEG particle increases, and that of the second one decreases. The reason for the difference maybe is that the crystallization process of microencapsulated PEG particles is uniform and the crystallization ends when the spherulites touch the wall, thus the opportunity of producing the second crystallization peak was relatively reduced.
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| 关 键 词： | 微囊化 聚乙二醇 结晶作用 化学分析 |
| 文章编号： | 1672-5220（2007）02-0157-04 |
| 修稿时间： | 2006-08-20 |
Isothermal Crystallization Kinetics of Microencapsulated Polyethylene Glycol Particles |
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| DONG Zhi-zhi,ZHANG Zhi-ying,CHEN Li,SONG Zheng-hong,WANG Shu-guang,JIANG Ai-bing. Isothermal Crystallization Kinetics of Microencapsulated Polyethylene Glycol Particles[J]. Journal of Donghua University, 2007, 24(2): 157-160 |
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| Authors: | DONG Zhi-zhi ZHANG Zhi-ying CHEN Li SONG Zheng-hong WANG Shu-guang JIANG Ai-bing |
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| Affiliation: | School of Materials Science and Chemical Engineering, Tianjin Key Laboratory of Fiber Modification and Functional Fiber, Tianjin Polytechnic University, Tianjin 300160, China |
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| Abstract: | The microencapsulated polyethylene glycol (PEG)with different molecular weight by a fluidized coating method has been prepared and the crystallization behaviors of PEG particles in three-dimensional confined volume were investigated by using differential scanning calorimetry(DSC) measurement.The results showed that the width of the crystallization peak of PEG increases and its height gradually diminishes in case that the PEG particles are microencapsulated. Compared with the non-microencapsulated PEG particles, the proportion of the first crystallization peak of microencapsulated PEG particle increases, and that of the second one decreases. The reason for the difference maybe is that the crystallization process of microencapsulated PEG particles is uniform and the crystallization ends when the spherulites touch the wall,thus the opportunity of producing the second crystallization peak was relatively reduced. |
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| Keywords: | microencapsulation polyethylene glycol (PEG) crystallization |
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