多孔性
甲基丙烯酸酯
材料科学
化学工程
乳状液
聚合物
空隙(复合材料)
模板
多孔介质
共聚物
高分子化学
复合材料
纳米技术
工程类
作者
Sebastijan Kovačič,Dejan Štefanec,Peter Krajnc
出处
期刊:Macromolecules
[American Chemical Society]
日期:2007-10-01
卷期号:40 (22): 8056-8060
被引量:109
摘要
Preparation of highly porous (up to 80% pore volume) open-cellular monolithic cross-linked polymers from 2-hydroxyethyl methacrylate is reported. Oil-in-water and water-in-oil high internal phase emulsions are applied as porosity templates, resulting in an interconnected porous structure with void diameters between 550 nm and 18 μm. Significantly larger voids were obtained in the case of oil-in-water emulsions (between 5 and 18 μm) as opposed to water in oil emulsions (approx 600 nm). Controlled coarsening exploiting limited kinetical stability of emulsions was used to obtain monoliths with larger voids, diameters being enlarged 3-fold.
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