Macroporous Polymers with Aligned Microporous Walls from Pickering High Internal Phase Emulsions

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• 作者：Yun Zhu ; Ranran Zhang ; Shengmiao Zhang ; Yeqian Chu ; Jianding Chen
• 刊名：Langmuir
• 出版年：2016
• 出版时间：June 21, 2016
• 年：2016
• 卷：32
• 期：24
• 页码：6083-6088
• 全文大小：383K
• 年卷期：0
• ISSN：1520-5827

文摘

A novel class of macroporous polymers, open macroporous polymers with aligned microporous void walls, were prepared by combining particle-stabilized high internal phase emulsion (Pickering HIPE) and unidirectional freezing technique. These Pickering HIPEs were prepared by utilizing poly(urethane urea)/(vinyl ester resin) nanoparticles as the sole stabilizer, and this nanoparticles also acted as building blocks for the resulting macroporous polymers. Moreover, the morphology and compression modulus of the resulting porous materials could be tuned easily. This means now Pickering-HIPE templated open-cell foams can be prepared, and this route was normally achieved with surfactant and/or chemical reaction involved.