Methyl Methacrylate HIPE Solely Stabilized by Fluorinated Di-block Copolymer for Fabrication of Highly Porous and Interconnected Polymer Monoliths

被引：16

作者：

Azhar, Umair ^{[1
]}

Zong, Chuanyong ^{[1
]}

Wan, Xiaozheng ^{[1
]}

Xu, Anhou ^{[1
]}

Zhang Yabin ^{[1
]}

Liu, Jitao ^{[1
]}

Zhang, Shuxiang ^{[1
]}

Geng, Bing ^{[1
]}

机构：

[1] Univ Jinan, Shandong Engn Res Ctr Fluorinated Mat, Sch Chem & Chem Engn, Shandong Prov Key Lab Fluorine Chem & Chem Mat, Jinan 250022, Shandong, Peoples R China

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2018年 / 24卷 / 45期

基金：

美国国家科学基金会;

关键词：

di-block copolymers; fluorinated; interconnected; MMA HIPE; porous polymers; INTERNAL-PHASE EMULSIONS; MECHANICAL-PROPERTIES; FOAMS; SURFACTANT; MORPHOLOGY; HYDROGELS; NANOPARTICLES; SEPARATION; POLYHIPES; DELIVERY;

D O I：

10.1002/chem.201800787

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Preparation of stable water-in-oil (W/O) high internal phase emulsion (HIPE) containing methyl methacrylate (MMA) monomer as oil phase is a difficult task due to the significant solubility of MMA in water. Here, for the first time a fluorinated di-block copolymer (FDBC) poly (2-dimethylamino) ethylmethacrylate-b-poly (trifluoroethyl methacrylate) (PDMAEMA-b-PTFEMA) is proposed to stabilize HIPEs of MMA without the use of any co-stabilizer or thickening agent. Fluorinated segments in FDBC anchored well at oil/water interface of HIPE, offering high hydrophobicity to the partially hydrophilic MMA monomer and in turn stabilization to MMA-HIPE. By using fluorinated di-block copolymer as stabilizer, highly stable HIPEs can be obtained. In addition, highly interconnected porous monoliths were obtained after free radical polymerization, which are highly desirable materials in various practical applications including tissue engineering scaffolds, separation science, bio-engineering and so on. The as-prepared MMA-HIPEs possess high thermal stability without phase separation. The textural characteristics of as-prepared composites, such as pore size and distribution, can be easily controlled by simply varying the amount of FDBC and/or dispersed phase fraction. Moreover, the influence of di-block concentration on water uptake (WU) capability of the prepared porous monoliths is explored.

引用

页码：11619 / 11626

页数：8

共 55 条

[1] Porous multifunctional fluoropolymer composite foams prepared via humic acid modified Fe3O4 nanoparticles stabilized Pickering high internal phase emulsion using cationic fluorosurfactant as co-stabilizer [J].