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用示含量热扫描（ＤＳＣ）研究了羧酸酯稀土（ＣＥＲＥＳ）对聚氯乙烯（ＰＶＣ）的凝胶化过程．研究表明ＣＥＲＥＳ有促进ＰＶＣ凝胶化的作用。基于分于轨道理论推测了ＣＥＲＥＳ与ＰＶＣ大分子之间可能存在的作用力，探索了ＣＥＲＥＳ促进ＰＶＣ凝胶化的机理．
The gelation of polyvinyl chloride (PVC) with carboxylate rare earth (CERES) was investigated by DSC. Studies have shown CERES promote the role of PVC gelation. Based on the theory of orbital theory, the possible forces between CERES and PVC macromolecules were deduced, and the mechanism of CERES promoting PVC gelation was explored.