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

被引：59

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

来源：

POLYMER | 2010年 / 51卷 / 16期

基金：

上海市自然科学基金;

关键词：

Porous hydrophilic polymers; High internal phase emulsions; Poly(urethane urea) aqueous; nanodispersion; SYNTHESIS PARAMETERS; SILICA PARTICLES; SURFACTANT; MONOLITHS; POLYHIPES; HIPES; TEMPLATES; SCAFFOLDS; CHEMISTRY; INVERSION;

D O I：

10.1016/j.polymer.2010.06.008

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

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.

引用

页码：3612 / 3617

页数：6

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