| 高分子量聚α-乙烯吡啶(P2VP)在高效GPC中机械降解的研究 |
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| 引用本文： | 文承诚,蔡夫柳.高分子量聚α-乙烯吡啶(P2VP)在高效GPC中机械降解的研究[J].高分子学报,1986,0(4):296-299. |
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| 作者姓名： | 文承诚 蔡夫柳 |
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| 作者单位： | 南开大学化学系 天津
(文承诚)，北京化纤工学院 北京(蔡夫柳) |
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| 摘 要： | <正> 高效GPC广泛地应用于测量高聚物的分子量和分子量分布,有显著的优点,取得了很好的结果。但是,我们必须考虑样品中高分子量部分的降解,因为降解的存在,会影响校正曲线的准确性,从而使计算的分子量和分子量分布产生误差。如果降解严重,则不能用高效GPC进行分子量和分子量分布的测定。本文研究高分子量的P2VP流经高效GPC的Styragel柱后的降解行为,并讨论降解的原因。
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| 收稿时间： | 1984-03-30 |
A STUDY OF MACHANICAL DEGRADATION OF HIGH-MOLECULAR-WEIGHT POLY (2-VINYLPYRIENE) IN HIGH PERFORMANCE GPC |
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| WEN Cheng-cheng,CAI Fu-liu.A STUDY OF MACHANICAL DEGRADATION OF HIGH-MOLECULAR-WEIGHT POLY (2-VINYLPYRIENE) IN HIGH PERFORMANCE GPC[J].Acta Polymerica Sinica,1986,0(4):296-299. |
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| Authors: | WEN Cheng-cheng CAI Fu-liu |
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| Institution: | Department of Chemistry; Nankai University; Tianjing; Beijing Institute of Chemical fiber Engineering; Beijing |
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| Abstract: | High performance GPC is a powerful technique for polymer characterization, but the mechanical degradation is expected to be serious in this case. We have to consider the degradation of the high-molecular-weight portion of the sample after passing through high performance GPC column. From the result obtained we can conclude that six P2VP samples, after passage through GPC columns, showed serious degradation (64%), therefore high performance GPC can not be used as a method of determining molecular weight and molecular weight distribution of high-molecular-weight P2VP(M>2.66×10-6). |
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