摘要
A series of poly(ethylene oxide)(PEO) membranes with star-like structures for CO_2/H_2 separation were prepared by the photo-polymerization method. The structure of PEO membrane was characterized by Fourier transform infrared spectroscopy(FTIR). The thermal property and inter-segmental distance of polymer chain were investigated by differential scanning calorimetry and wide-angle X-ray diffraction, respectively. The density was determined by hydrostatic weighing method. The gas permeability, solubility and diffusivity of CO_2 and H_2 were investigated in the star-like PEO membranes. The relationship between gas permeation performances and physical properties was also discussed. The membrane exhibits outstanding CO_2 permeability(about 9.7×10^(-11) cm^3(STP) cm/cm^2/s/Pa) and CO_2/H_2 selectivity(about 11) compared with other membranes.
A series of poly(ethylene oxide)(PEO) membranes with star-like structures for CO_2/H_2 separation were prepared by the photo-polymerization method. The structure of PEO membrane was characterized by Fourier transform infrared spectroscopy(FTIR). The thermal property and inter-segmental distance of polymer chain were investigated by differential scanning calorimetry and wide-angle X-ray diffraction, respectively. The density was determined by hydrostatic weighing method. The gas permeability, solubility and diffusivity of CO_2 and H_2 were investigated in the star-like PEO membranes. The relationship between gas permeation performances and physical properties was also discussed. The membrane exhibits outstanding CO_2 permeability(about 9.7×10^(-11) cm^3(STP) cm/cm^2/s/Pa) and CO_2/H_2 selectivity(about 11) compared with other membranes.
作者
ZHAO Hongyong
DING Xiaoli
赵红永;丁晓莉;WEI Zhengang;XIE Qian;ZHANG Yuzhong;TAN Xiaoyao(State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membrane, Tianjin Polytechnic University;Tianjin Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University;School of Environmental and Chemical Engineering, Tianjin Polytechnic University;Institute of Separation Material and Process Control, School of Material Science and Engineering,Tianjin Polytechnic University)
基金
Funded by the National Natural Science Foundation of China(Nos.21776217,21506160)
the Science and Technology Plans of Tianjin(Nos.17PTSYJC00050,18PTSYJC 00190)
