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一、前言 为进一步提高维纶的质量采用简易凝胶渗透色谱法测定了聚乙烯醇聚合度分布。实践证明本法具有准确、灵敏度高,简便和快速的特点,可作为生产聚醋酸乙烯酯(PVAc)和聚乙烯醇(PVA)工厂分析PVAc和PVA的聚合度分布的常规方法。
First, the foreword In order to further improve the quality of vinylon by gel permeation chromatography was measured polyvinyl alcohol polymerization degree distribution. Practice has proved that this method is accurate, sensitive, simple and fast. It can be used as a routine method for analyzing the polymerization degree distribution of PVAc and PVA in the production of polyvinyl acetate (PVAc) and polyvinyl alcohol (PVA) plants.