PVA pervaporation membranes for esterification of trifluoroethyl methacrylate using trifluoroethanol and methacrylic acid
New poly (vinyl alcohol) (PVA) membranes were prepared via thermal crosslinking reaction between PVA and ethylene glycol diglycidyl ether (EGDE) and were used in the pervaporation-combined esterification of trifluoroethyl methacrylate(TFEMA) using trifluoroethanol (TFEA) and methacrylic acid (MA). The PVA membranes with different EGDE content were characterized using DSC and swelling tests. The PVA membranes prepared showed better acid-resistance than those crosslinked with gluaraldehyde. The basic pervaporation properties of the membranes with different EGDE content were investigated for TFEA/water and MA/water mixtures, and pure TFEMA as a function of operating temperature. The esterification of TFEA with MA using the PVA membranes was also carried out and their pervaporation properties were analyzed as a function of reaction time.
Poly(vinyl alcohol) Ethylene glycol diglycidyl ether Pervaporation 2,2,2-trifluoroethanol Membrane Reactor
Bong-Jun Chang Sang-Man Ahn Jeong-Hoon Kim Yong-Taek Lee Soo-Bok Lee
Interface Materials & Eng.Lab.Division of Advanced Chemical Technology, Korea Research Institute of Interface Materials & Eng.Lab.Division of Advanced Chemical Technology, Korea Research Institute of Department of Chemical Engineering, Chung-Nam National University, Yuseong, Daejeon 305-764, Republi
国际会议
The 5th International Conference on Separation Science and Technology(第五届国际分离科学与技术会议)
北京
英文
2007-10-14（万方平台首次上网日期，不代表论文的发表时间）