The methods for modifying heat resistance of poly(vinyl chloride) (PVC) resins were reviewed, including blending modification, copolymerization modification and chlorination modification, etc.
对聚氯乙烯（PVC）树脂耐热改性方法的研究进行了综述。 PVC树脂耐热改性方法有共混改性、共聚合改性、氯化改性和其他改性。
This paper introduces modification of poly vinyl acetate by copolymerization and the application state of the modified products.
文章介绍了聚醋酸乙烯酯共聚改性研究及改性产品应用进展情况。
The graft copolymerization of vinyl monomers onto starch was an important method for the modification of starch.
淀粉与乙烯基单体接枝共聚是淀粉改性的重要方法。
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