| 沉淀聚合法制备VCL／NVP温敏型微凝胶及其性能研究 |
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| 引用本文： | 李国英,姚洪伟,吴土萍,刘玉珍.沉淀聚合法制备VCL／NVP温敏型微凝胶及其性能研究[J].化学工程师,2009(1):61-64. |
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| 作者姓名： | 李国英 姚洪伟 吴土萍 刘玉珍 |
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| 作者单位： | 青岛大学化学化工与环境学院,山东,青岛,266071 |
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| 摘 要： | 用沉淀聚合法，以N-乙烯基己内酰胺（VCL）和N-乙烯基吡咯烷酮（NVP）为共聚单体、N，N-亚甲基双丙烯酰胺（MBA）为交联剂，通过改变交联剂的量制备了-系列不同粒径的温敏型微凝胶。用纳米颗粒力度分析仪（DLS）和原子粒显微镜（AFM）对凝胶进行了表征。结果表明：粒子为球型单分散；在15—55℃范围内凝胶粒径随温度升高而减小，具有温度敏感性，最低临界转变温度（LCST）为35℃；交联剂的量不改变最低临界转变温度，只改变粒子大小。
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| 关 键 词： | 沉淀聚合法 温度敏感性 微凝胶 交联剂 |
Preparation and characterization of thermosensitive poly(N-vinylcaprolactam-co-N-vinylpyrrolidone) microgels throw precipitation polymerization |
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| LI Guo-ying,YAO Hong-wei,WU Tu-ping,LIU Yu-zhen.Preparation and characterization of thermosensitive poly(N-vinylcaprolactam-co-N-vinylpyrrolidone) microgels throw precipitation polymerization[J].Chemical Engineer,2009(1):61-64. |
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| Authors: | LI Guo-ying YAO Hong-wei WU Tu-ping LIU Yu-zhen |
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| Affiliation: | College of Chemical Engineering and Environment;Qingdao University;Qingdao 266071;China |
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| Abstract: | New thermosensitive microgel particles produced by using N-vinylcaprolactam(VCL),N-vinylpyrrolidone(NVP) and N,N-methylenebis(acrylamide)(MBA) throw precipitation polymerization methods.VCL and NVP are comonomers,and MBA is cross-linker.A series of Thermosensitive microgels was prepared throw change the dive of cross-linker.The surface of the microgel particles were studied by atomic force microscope(AFM),and the temperature responsive behaviors were characterized by measuring the diameter of the microgels ... |
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| Keywords: | precipitation polymerization temperature sensitive microgel cross-linker |
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