文献类型：期刊文献

英文题名：Preparation of Macroporous Polymers from Microcapsule-Stabilized Pickering High Internal Phase Emulsions

作者：Zhu, Hanying[1];Zhang, Maolin[1];Zhang, Shengmiao[1]

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

年份：2019

卷号：35

期号：29

起止页码：9504

外文期刊名：LANGMUIR

收录：;EI(收录号：20193207292125);WOS:【SCI-EXPANDED(收录号:WOS:000477093200019)】；

基金：This work was supported by the National Natural Science Fund of China (51773059), the Natural Science Foundation of Shanghai (16ZR1407800), and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Acrylic monomers - Nonionic surfactants - Self-healing materials - Living polymerization - Styrene - Ostwald ripening

摘要：The ability to make stable water-in-oil (W/O) Pickering high internal phase emulsions (HIPEs) is demonstrated using microcapsules as a stabilizer. The microcapsules are prepared with glycidyl methacrylate (GMA) and poly(melamine-formaldehyde) (PMF) as core and wall materials, respectively. Using these GMA-loaded PMF-walled microcapsules as a sole stabilizer of water-in-styrene/divinylbenzene HIPE, the polymerization of this HIPE causes a closed-cell porous polymer. While with the addition of a certain amount of the nonionic surfactant Span80 to the microcapsule-stabilized HIPEs, a series of open cell porous materials are obtained. The morphologies of the porous materials are tunable with changing the microcapsules content and/or surfactant amount in the HIPE templates. When Raft polymerization is introduced to cure these HIPEs, owing to both the self-healing agent GMA within the microcapsules and the residue of the chain-transfer agent from Raft polymerization of HIPEs, the resulting porous polymers are proved to be self-repairable. This work suggests a new type of Pickering HIPE and provides a novel idea for preparing self-healing porous materials.