| DETERMINATION OF PERMEATION PROPERTIES OF GAS THROUGH POLYMER MEMBRANE BY GAS CHROMATOGRAPHY |
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| 作者姓名： | 金熹高 傅秀城 詹永坚 钱人元 |
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| 作者单位： | Institute of Chemistry，Academia Sinica，Beijing，Institute of Chemistry，Academia Sinica，Beijing，Institute of Chemistry，Academia Sinica，Beijing，Institute of Chemistry，Academia Sinica，Beijing |
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| 基金项目： | Supported by Science Foundation of Academia Sinica and National Science Foundation of China |
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| 摘 要： | An apparatus constructed for measuring permeation properties of polymer membranes using a mixture of gases is described. A gas chromatographic system was applied to determine the individual transport characteristics of component gases without a vacuum line. This paper also discusses some experimental factors effecting the precision of measurement. The results show that there is a linear relationship between the permeation time and the volume of the gas permeated through the membrane within certain permeation period, which depends on the permeation rate (from 10~(-4) to 10~(-7) cm~3 (STP)/cm~2. sec. cmHg) of the membrane. The reproducibility has been found to be good with a relative standard deviation of 3.5%. This method is more sensitive, considerably faster and more convenient for determining both the permeability coefficient and the separation factor of a polymer membrane from a chromat ogram using mixed penetrant gases.
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| 收稿时间： | 1986-09-28 |
DETERMINATION OF PERMEATION PROPERTIES OF GAS THROUGH POLYMER MEMBRANE BY GAS CHROMATOGRAPHY* |
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| JIN Xigao,FU Xiucheng,ZHAN Yongjian,QIAN Renyuan.DETERMINATION OF PERMEATION PROPERTIES OF GAS THROUGH POLYMER MEMBRANE BY GAS CHROMATOGRAPHY[J].Chinese Journal of Polymer Science,1987,0(4):325-331. |
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| Authors: | JIN Xigao FU Xiucheng ZHAN Yongjian QIAN Renyuan |
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| Institution: | Institute of Chemistry; Academia Sinica; Beijing |
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| Abstract: | An apparatus constructed for measuring permeation properties of polymer membranes using a mixture of gases is described. A gas chromatographic system was applied to determine the individual transport characteristics of component gases without a vacuum line. This paper also discusses some experimental factors effecting the precision of measurement. The results show that there is a linear relationship between the permeation time and the volume of the gas permeated through the membrane within certain permeation period,which depends on the permeation rate(from 10-10 to 10-7 cm3(STP)/cm2.sec.cmHg) of the membrane.The reproducibility has been found to be good with a relative standard deviation of 3.5%.This method is more sensitive,considerably faster and more convenient for determining both the permeability coefficient and the separation factor of a polymer membrane from a chromat ogram using mixed penetrant gases. |
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