| 聚酰亚胺/SnO_2杂化膜的制备和表征及其气体渗透性测定 |
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| 引用本文： | 王茂功,钟顺和.聚酰亚胺/SnO_2杂化膜的制备和表征及其气体渗透性测定[J].高分子学报,2006(6):833-837. |
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| 作者姓名： | 王茂功 钟顺和 |
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| 作者单位： | 天津大学化工学院,天津,300072 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 杂化材料作为一种新型材料结合了有机无机材料的优异特性，具有较高的热稳定性、机械强度和某些特殊的化学性质，在微电子、光电设备、传感器和分离膜等诸多领域得到应用与研究．溶胶凝胶法作为合成杂化材料的主要手段，具有反应条件温和，可通过调配反应参数来控制杂化材料的微观形态和性质等优点．
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| 关 键 词： | 聚酰亚胺/SnO2 杂化材料 溶胶凝胶法 气体分离 |
| 收稿时间： | 2006-03-13 |
| 修稿时间： | 2006-04-28 |
PREPARATION, CHARACTERIZATION AND GAS SEPARATION PROPERTIES OF POLYIMIDE/SnO2 HYBRID MEMBRANES |
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| WANG Maogong,ZHONG Shunhe.PREPARATION, CHARACTERIZATION AND GAS SEPARATION PROPERTIES OF POLYIMIDE/SnO2 HYBRID MEMBRANES[J].Acta Polymerica Sinica,2006(6):833-837. |
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| Authors: | WANG Maogong ZHONG Shunhe |
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| Institution: | College of Chemical Engineering and Technology, Tianjin University, Tianfin 300072 |
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| Abstract: | A series of polyimide/SnO_2 hybrid membranes supported on TiO_2/kieselguhr-mullite(K-M) were prepared via a sol-gel process.Their morphologies,chemical structures,thermal performances,pore distribution and gas permeability were characterized by means of TEM,FTIR,TG/DTA,DSC,N_2 adsorption and gas permeability measurements.The results showed the SnO_2 phase was well dispersed in polyimide matrix.The SnO_2 phase connected with the polyimide through the pendant carboxyl groups along the polyimide chain.The polyimide/SnO_2 hybrid membranes possessed finely thermal stability.The hybrid membranes showed better separation properties for H_2,CO_2,N_2 and H_2O when compared to those of pure polyimide.The separation factors of the polyimide/SnO_2 hybrid membranes with 25 wt% SnO_2 are 58.2,42.4,51.2 and 68.8 for H_2/N_2,CO_2/N_2,CO/N_2 and H_2O/N_2 contents,respectively. |
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| Keywords: | Polyimide/SnO_2 Hybrid materials Sol-gel Gas separation |
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