Facile fabrication of poly(methyl methacrylate) monolith via thermally induced phase separation by utilizing unique cosolvency

被引：57
作者：
Yoneda, Shinya [1 ]
Han, Wenjuan [1 ]
Hasegawa, Urara [1 ]
Uyama, Hiroshi [1 ]
机构：
[1] Osaka Univ, Grad Sch Engn, Dept Appl Chem, Suita, Osaka 5650871, Japan
来源：
POLYMER | 2014年 / 55卷 / 15期
基金：
日本学术振兴会;
关键词：
Monolith; Poly(methyl methacrylate); Thermally induced phase separation; POLY(GAMMA-GLUTAMIC ACID) MONOLITH; POLYMER MONOLITHS; ION-EXCHANGE; FUNCTIONALIZATION; CHEMISTRY; MIXTURES;
D O I：
10.1016/j.polymer.2014.05.031
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Poly(methyl methacrylate) (PMMA) monoliths with a three-dimensional continuous interconnected porous structure in a single piece were fabricated via thermally induced phase separation (TIPS) by utilizing unique cosolvency toward PMMA. We found that PMMA was soluble in a mixture of non-solvents (ethanol and water) at 60 degrees C. Cooling the solution resulted in formation of a monolith having interconnected pores. Cross-sectional analysis using scanning electron microscopy (SEM) showed a continuous porous network with submicron-sized skeleton. The pore size of the monolith was readily controlled by varying the fabrication parameters such as the polymer concentration and molecular weight, the cooling temperature and the solvent composition. The cross-section of the monolith showed high water repellency. The PMMA monolith was also obtained in a mixture of isopropanol and water with an appropriate solvent ratio. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3212 / 3216
页数：5
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