| 凝胶渗透色谱在高聚物分子量测定中的应用 |
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| 引用本文： | 丁生龙,丛湧,高春梅,柳明珠. 凝胶渗透色谱在高聚物分子量测定中的应用[J]. 化学通报, 2017, 80(2): 151-156 |
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| 作者姓名： | 丁生龙 丛湧 高春梅 柳明珠 |
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| 作者单位： | 兰州大学化学化工学院 兰州 730000,兰州大学化学化工学院 兰州 730000,兰州大学化学化工学院 兰州 730000,兰州大学化学化工学院 兰州 730000 |
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| 摘 要： | 本文综述了近年来凝胶渗透色谱在油溶性和水溶性高聚物分子量测定中的应用,着重分析测试条件对水溶性样品分子量的影响并归纳了解决的办法。同时,介绍了配备紫外可见和示差折光检测器、示差和光散射检测器后凝胶色谱的应用。此外,还概述了几种常见高聚物分子量的标定和校准方法,以便多种方法相互验证,得到较准确的分子量值。
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| 关 键 词： | GPC 分子量 非体积效应 水溶性高分子 |
| 收稿时间： | 2016-07-26 |
| 修稿时间： | 2016-09-08 |
Application development in estimation of molecular weight by gel permeation chromatography |
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| Shenglong Ding,Yun Cong,Chunmai Gao and Mingzhu Liu. Application development in estimation of molecular weight by gel permeation chromatography[J]. Chemistry, 2017, 80(2): 151-156 |
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| Authors: | Shenglong Ding Yun Cong Chunmai Gao Mingzhu Liu |
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| Affiliation: | College of Chemistry and Engineering,Lanzhou University,Lanzhou,730000,College of Chemistry and Engineering,Lanzhou University,Lanzhou,730000,College of Chemistry and Engineering,Lanzhou University,Lanzhou,730000,College of Chemistry and Engineering,Lanzhou University,Lanzhou,730000 |
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| Abstract: | The application and development of molecular weight estimation by gel permeation chromatography (GPC) is summarized for oils-soluble and water-soluble polymers. The effect of pH, salt concentration and temperature on molecular weight estimation of water-soluble ones is presented. In addition, novel utilizations of GPC with dual detectors are reviewed. Calibration methodologies in GPC, including various instrumental method and director calibration, as well as universal calibration are reviewed. With the combination of multi-detectors, the performance of one detector could be effectively checked against others and the estimated molecular weights of polymer tend to be reliable and precise. |
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| Keywords: | Gel permeation chromatography, molecular weight, no-size exclusion effect , water soluble polymer |
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