文献类型：期刊文献

英文题名：Hydrophilic porous polymers based on high internal phase emulsions solely stabilized by poly(urethane urea) nanoparticles

作者：Zhu, Yun[1];Zhang, Shengmiao[1];Hua, Ye[1];Chen, Jianding[1];Hu, Chun Pu[1]

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

年份：2010

卷号：51

期号：16

起止页码：3612

外文期刊名：POLYMER

收录：;EI(收录号：20103513192885);WOS:【SCI-EXPANDED(收录号:WOS:000280263200003)】；

基金：The authors are grateful for the financial support of the Natural Science Foundation of Shanghai (Project Number: 09ZR1408300), Shanghai Leading Academic Discipline Project (B502) and Shanghai Key Laboratory Project (08DZ2230500).

语种：英文

外文关键词：Porous hydrophilic polymers; High internal phase emulsions; Poly(urethane urea) aqueous; nanodispersion

摘要：Stable oil-in-water (o/w) Pickering high internal phase emulsions (HIPEs) having an internal phase of up to 95 vol% were prepared with a low-energy emulsification method. A poly(urethane urea) (PUU) aqueous nanodispersion was used as aqueous phase. The PUU nanoparticles of the aqueous nanodispersion acted as a mechanical barrier, and prevented droplet coalescence in the Pickering HIPEs. In addition, open porous hydrophilic polymer foams were obtained by polymerization of the Pickering HIPEs, and the morphology of the foams were tailored by changing the oil:water ratio, PUU nanoparticle and NaCl concentrations. The method used herein provides a simple way to prepare morphology controlled hydrophilic polymer foams using o/w Pickering HIPEs as template. (C) 2010 Elsevier Ltd. All rights reserved.