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~(19)F-NMR法测定聚醚多元醇伯羟基含量样品预处理方法研究
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摘要
重点研究了利用~(19)F-NMR法测定聚醚多元醇中伯羟基的含量前酰化处理过程溶剂、酰化剂加入量、酰化反应时间等实验条件的选择,以及19F-NMR法准确度和精密度的评定。
Primary hydroxyl relative content of polyether polyol was determined by ~(19)F-NMR method,and experimental conditions containing the solvent,the amount of acylating agent added and the acylation reaction time.Furthermore,accuracy and precision of ~(19)F-NMR method were provided by this paper.
引文
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    [2]SIGGIA S,HANNA J G.Use of differential reaction rates to analyze mixtures of organic materials containing the same functional group[J].Anal Chem,1961,33:896 900.
    [3]陈耀祖,王昌益.近代有机定量分析[M].北京:科学出版社,1987:37,82-86,155,224.
    [4]吉佩芳.单扫描示波极普法在测定聚醚伯羟基方面的应用[J].金陵石油化工,1993(3):15,20-24.
    [5]MATHIAS A.The determination and estimation of the relative amount of primary and secondary hydroxyl groups using NMR[J].Anal Chim Acta,1964,31:598-601.

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