文献类型：期刊文献

英文题名：Synthesis of Latex Particles with a Complex Structure As an Emulsifier of Pickering High Internal Phase Emulsions

作者：Zhu, Yun[1];Zhang, Shengmiao[1];Hua, Ye[1];Zhang, Heng[1];Chen, Jianding[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Shanghai Key Lab Adv Polymer Mat,Minist Educ, Shanghai 200237, Peoples R China

年份：2014

卷号：53

期号：12

起止页码：4642

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20141417542571);WOS:【SCI-EXPANDED(收录号:WOS:000333551200013)】；

基金：This research was supported by the National Natural Scientific Foundation of China (51103042, 51203048), the Fundamental Research Funds for the Central Universities, Innovation Program of Shanghai Municipal Education Commission (12ZZ056), Shanghai Leading Academic Discipline Project (Project Number: B502), and Shanghai Key Laboratory Project (08DZ2230500).

语种：英文

外文关键词：Latexes - Emulsion polymerization - Emulsification - Hydrophobicity - Crosslinking

摘要：A one-pot surfactant-free emulsion polymerization was described to produce uniform copolymer particles with core shell structure, single-cavity structure, single-cavity with multiprotrusions in edge structure, or multiprotrusions structure. The structure of the copolymer particles was tailored by simply varying the cross-linker divinylbenzene (DVB) concentration in the emulsion. The formation of the nonspherical shape of the polymer particles was attributed to the presence of local cross-linking domains in the latex particles at low conversion and the phase separation between the hydrophilic polymer rich region and hydrophobic polymer rich region in further polymerization. With the copolymer particles as an emulsifier, Pickering high internal phase emulsions (HIPEs) having an internal phase fraction of 85 vol% were obtained. The use of nonspherical particles not only stabilizes the Pickering emulsions against coalescence but also enhances the roughness of the void wall in the emulsion-templated porous polymers and even endows the porous polymers with high adhesive superhydrophobicity. This provides a simple and new approach to the fabrication of superhydrophobic surfaces.