Langford Caitlin R, Johnson David W, Cameron Neil R
Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
Macromol Rapid Commun. 2015 May;36(9):834-9. doi: 10.1002/marc.201400733. Epub 2015 Mar 2.
Emulsion-templated highly porous polymers (polyHIPEs), containing distinct regions differing in composition, morphology, and/or properties, are prepared by the simultaneous polymerization of two high internal phase emulsions (HIPEs) contained within the same mould. The HIPEs are placed together in the mould and subjected to thiol-acrylate photopolymerization. The resulting polyHIPE material is found to contain two distinct semicircular regions, reflecting the composition of each HIPE. The original interface between the two emulsions becomes a copolymerized band between 100 and 300 μm wide, which is found to be mechanically robust. The separate polyHIPE layers are distinguished from one another by their differing average void diameter, chemical composition, and extent of contraction upon drying.
乳液模板化的高度多孔聚合物（聚HIPE）包含在组成、形态和/或性质上不同的不同区域，通过在同一模具中同时聚合两种高内相乳液（HIPE）来制备。将这些HIPE一起放置在模具中，并进行硫醇-丙烯酸酯光聚合。发现所得的聚HIPE材料包含两个不同的半圆形区域，反映了每种HIPE的组成。两种乳液之间的原始界面变成了一个宽度在100至300μm之间的共聚带，发现其机械强度很高。单独的聚HIPE层通过其不同的平均孔隙直径、化学成分和干燥时的收缩程度相互区分。
