| 从GPC谱图和[η]获得(?)_w的误差分析——正态分布型模型GPC谱图 |
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| 引用本文： | 尹名东.从GPC谱图和[η]获得(?)_w的误差分析——正态分布型模型GPC谱图[J].高分子学报,1991(3). |
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| 作者姓名： | 尹名东 |
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| 作者单位： | 齐齐哈尔轻工学院化工系 齐齐哈尔 |
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| 摘 要： | 本文利用正态分布型模型GPC谱图从理论上分析了利用GPC谱图和特性粘数来求样品重均分子量可能引入的误差问题。理论和实验表明,当样品的α在0.6—0.8之间,分子量分散指数(?)_w/(?)_n<10时,利用文献3]提出的方法计算近正态分布的试样的重均分子量的误差不会大于10％。而且分子量分布越窄,α值越接近0.6185,所得的结果越准确。
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| 关 键 词： | 凝胶渗透色谱 平均分子量 特性粘数 GPC谱图计算 误差分析 |
THE ERROR ANALYSIS OF THE METHOD FOR ESTIMATION WEIGHT AVERAGE MOLECULAR WEIGHT OF POLYMER SAMPLE FROM THE INTRINSIC VISCOSITY AND GPC CHROMATOGRAM OF NORMAL DISTRIBUTION SHAPE |
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| YIN Mingdong.THE ERROR ANALYSIS OF THE METHOD FOR ESTIMATION WEIGHT AVERAGE MOLECULAR WEIGHT OF POLYMER SAMPLE FROM THE INTRINSIC VISCOSITY AND GPC CHROMATOGRAM OF NORMAL DISTRIBUTION SHAPE[J].Acta Polymerica Sinica,1991(3). |
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| Authors: | YIN Mingdong |
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| Abstract: | The error analysis of the method for estimation of weight average molecular weight ofpolymer sample from the intrinsic viscosity, and GPC chromatogram of normal distributionshape was discussed in this paper. The error analysis and experiment result showed that the ralative error of weight avarge molecular weight of polymer sample was not more than 10% by the method proposed in refrence (3), when 0.6
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| Keywords: | GPC Average molecular (wt) Intrinsic viscosity Calculation GPC chro-matograms Error analysis |
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