| 单体滴加法微乳液聚合过程中PMMA物理水凝胶形成的研究 |
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| 引用本文： | 姜琬,王雷,李鸣鹤,汪长春,府寿宽. 单体滴加法微乳液聚合过程中PMMA物理水凝胶形成的研究[J]. 高等学校化学学报, 2002, 23(7): 1413-1416 |
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| 作者姓名： | 姜琬 王雷 李鸣鹤 汪长春 府寿宽 |
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| 作者单位： | 复旦大学高分子科学系, 教育部聚合物分子工程重点实验室, 上海 200433 |
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| 基金项目： | 国家自然科学基金 (批准号 :2 98740 10 )，教育部博士学科点基金资助课题 |
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| 摘 要： | 在70℃下,以过硫酸铵(APS)为引发剂,采用单体滴加法,进行微乳液聚合,制得的聚甲基丙烯酸甲酯(PMMA)微乳液可形成几乎透明的物理水凝胶.扫描电镜(SEM)实验表明,这种水凝胶是由大量的聚合物纳米粒子彼此连接而成的物理网络形成的.讨论了影响水凝胶形成的因素,提出了水凝胶形成的机理.
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| 关 键 词： | 水凝胶 微乳液 聚甲基丙烯酸甲酯 扫描电镜 |
| 文章编号： | 0251-0790(2002)07-1413-04 |
| 收稿时间： | 2001-04-29 |
Studies on the Formation of Physical Hydrogels During a Monomer Post-added Microemulsion Polymerization of PMMA |
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| Affiliation: | Department of Macromolecular Science, Key Laboratory of Molecular Engineering of Polymers, Educational Ministry, Fudan University, Shanghai 200433, China |
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| Abstract: | Nearly transparent PMMAphysical hydrogels were formed during a monomer post-added microemulsion polymerization procedure by using ammonium persulfate(APS) as an initiator at a higher temperature up to 70 ℃. SEMobservations suggested that a lot of nanoparticles would be able to connect one another to form a physical network.The factors which affect the formation of these hydrogels were discussed and the formation mechanism was proposed in this paper. |
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| Keywords: | Hydrogel Microemulsion PMMA SEM |
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