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首页> 外文期刊>Journal of Applied Polymer Science >Polymerized high internal-phase emulsions: Properties and interaction with water
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Polymerized high internal-phase emulsions: Properties and interaction with water

机译：聚合的高内相乳液：性质和与水的相互作用

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The synthesis and characterization of novel polymerized high internalphase emulsions (polyHIPE) materials are described. Homogeneous, highly porous, low-density, open-cell crosslinked copolymers were prepared by polymerizing the continuous phase of HIPS containing styrene and varying amounts of 2-ethylhexyl methacrylate. The glass transition temperatures (T(g)s) of the homopolymers were similar to the literature values, but the copolymer T(g)s were lower than expected. These results indicate that the copolymer composition is richer in 2-ethylhexyl methacrylate than the feed composition. The homopolymer moduli, calculated from the foam moduli, were similar to the literature values. The influence of composition and surface treatment on the water absorbed by the foams was investigated. For example, washing a polyHIPE based on poly(ethylhexyl acrylate) in water at 70 degreesC increased water absorption because of the removal of the residual salt. Adding a fluorinated comonomer to the HIDE reduced hydrophilicity and, thus, water absorption. (C) 2002 Wiley Periodicals, Inc. [References: 23]
机译：描述了新型聚合的高内相乳液（polyHIPE）材料的合成与表征。通过聚合含有苯乙烯和不同量的甲基丙烯酸2-乙基己酯的HIPS连续相，可以制备均质，高度多孔，低密度，开孔交联共聚物。均聚物的玻璃化转变温度（T（g）s）与文献值相似，但共聚物的T（g）s低于预期值。这些结果表明该共聚物组合物比进料组合物富含甲基丙烯酸2-乙基己酯。由泡沫模量计算出的均聚物模量与文献值相似。研究了组成和表面处理对泡沫吸收的水的影响。例如，在70℃的水中洗涤基于聚（丙烯酸乙基己酯）的聚HIPE，由于去除了残留的盐而增加了吸水率。将氟化共聚单体添加到HIDE中会降低亲水性，从而降低吸水率。 （C）2002 Wiley Periodicals，Inc. [参考：23]

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