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首页> 外文期刊>Journal of Applied Polymer Science >GMA-based emulsion-templated solid foams: Influence of co-crosslinker on morphology and mechanical properties
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GMA-based emulsion-templated solid foams: Influence of co-crosslinker on morphology and mechanical properties

机译：基于GMA的乳液模板化固体泡沫：共交联剂对形态和机械性能的影响

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摘要

Highly open porous polymer foams formed from high internal phase emulsions (polyHIPEs) are attracting significant interest because of their potential applications in many areas of advanced materials science. In this work, the influence of the crosslinker or co-crosslinkers of different molecular weights on the morphology and mechanical properties of polyHIPEs containing glycidyl methacrylate (GMA) was studied. Several poly(ethylene glycol) dimethacrylate (PEGDMA) crosslinkers were considered. The results show that introducing higher molecular weight crosslinkers into polyHIPEs produces a more open structure, with significantly increased compression strength and deformation at breakage. This eliminated the undesirable brittleness and chalkiness commonly found in polyHIPE materials. The Young's modulus of GMA-based polyHIPEs containing 40% poly(ethylene glycol) dimethacrylate increased by 50% and the crush strength by 400% when compared with traditional GMA/ethylene glycol dimethylacrylate polyHIPEs. This improvement in mechanical properties is expected to improve the suitability of polyHIPEs for use in a wide range of applications. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46295.
机译：由于其在高级材料科学的许多领域，高度开放的多孔聚合物泡沫由高内相乳液（Polyhipes）形成的高度兴趣引起了重大兴趣。在这项工作中，研究了不同分子量对含甲基丙烯酸缩水甘油酯（GMA）的聚丙酯的形态和力学性能的交联剂或共交联助剂的影响。考虑了几种聚（乙二醇）二甲基丙烯酸二甲基丙烯酸酯（PEGDMA）交联剂。结果表明，将较高的分子量交联剂引入聚丙烯，产生更开放的结构，具有显着增加的压缩强度和破损变形。这消除了在聚合材料中常见的不良脆性和垩白。与传统的GMA /乙二醇二甲基丙烯酸酯聚相比，含有40％聚（乙二醇）二甲基丙烯酸酯的基于GMA的聚丙烯酸酯的GMA的聚合的模量增加了50％，挤压强度为400％。这种改善机械性能预计将提高聚合使用的适用性，适用于各种应用。 （c）2018 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2018,135,46295。

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