| 凝胶渗透色谱法测定聚丙烯腈共聚物分子量中宽分布校正法的应用 |
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| 引用本文： | 张寿春,温月芳,杨永岗,郑经堂,凌立成,贺福. 凝胶渗透色谱法测定聚丙烯腈共聚物分子量中宽分布校正法的应用[J]. 理化检验(化学分册), 2004, 40(9): 511-513,516 |
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| 作者姓名： | 张寿春 温月芳 杨永岗 郑经堂 凌立成 贺福 |
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| 作者单位： | 中国科学院,山西煤炭化学研究所,炭材料开放实验室,太原,030001 |
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| 基金项目： | 中科院创新方向性项目(KGCX2 SW 204)，山西省 自然科学青年科技研究基金(20021025)，太原市科技启明星计划 项目。 |
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| 摘 要： | 应用宽分布校正法对凝胶渗透色谱(GPC)进行了校正，将校正曲线用于聚丙烯腈(PAN)共聚物分子量的计算。对扣除色谱峰扩展效应前后的测试结果与乌氏粘度法测得的数据进行比较。结果表明，应用宽分布校正法时，必须扣除色谱峰扩展效应，才能得到较为准确的测试结果。
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| 关 键 词： | 聚丙烯腈共聚物 分子量 宽分布校正法 凝胶渗透色谱法 乌氏粘度法 |
| 文章编号： | 1001-4020(2004)09-0511-03 |
APPLICATION OF POLYDISPERSE CALIBRATION TO THE GPC DETERMINATION OF MOLECULAR WEIGHT OF COPOLYMER OF POLYPROPENENITRILE |
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| ZHANG Shou-chun,WEN Yue-fang,YANG Yong-gang,ZHENG Jing-tang,LIN Li-cheng,HE Fu. APPLICATION OF POLYDISPERSE CALIBRATION TO THE GPC DETERMINATION OF MOLECULAR WEIGHT OF COPOLYMER OF POLYPROPENENITRILE[J]. Physical Testing and Chemical Analysis Part B:Chemical Analgsis, 2004, 40(9): 511-513,516 |
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| Authors: | ZHANG Shou-chun WEN Yue-fang YANG Yong-gang ZHENG Jing-tang LIN Li-cheng HE Fu |
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| Abstract: | Polydisperse calibration is now widely used in the GPC determination of molecular weight of copolymer of polypropenenitrile. It is reported in this paper that the spreading effect of the peak of chromatogram must be corrected in the application of polydisperse calibration, otherwise, accurate results can not be obtained. By comparing the data obtained with and without the correction of the spreading effect of chromatographic peak, and with the data obtained by the viscosity method, the necessity of correction of peakspreading effect is very obvious. |
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| Keywords: | Gel permeation chromatography (GPC) Polydisperse calibration Polypropenenitrile Molecular weight Spreading effect of chromatographic peak |
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