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目前,在聚合物科学中,聚合物共混体系已成为研究的中心内容.聚合物共混产品的普遍使用,显示出它们在工业上现行的及潜在的重要性.全世界都在广泛地研究聚氯乙烯(PVC)的共混改性.Hardt 曾研究过EVA (乙烯一醋酸乙烯酯共聚物)改性PVC 的微粒结构,以叔丁醇腐蚀磨光的样品,其中只有EVA 受腐蚀,继而用透射电镜(TEM)进行观察,Jyo 和Bassevitz 则将EVA 中的VAc 水解成醇,并以OsO_6将其染色而进行观察.本工作以扫描电镜(SEM)观察了EVA—VC 接枝共聚物和EVA—PVC 共混物的形态.
At present, polymer blends have become the focus of research in polymer science.Universal blends of polymers have shown their current and potential importance in the industry.Researchers around the world are studying Blending Modification of Polyvinyl Chloride (PVC) .Hardt has studied the particle structure of EVA (ethylene-vinyl acetate copolymer) -modified PVC, corroded polished samples with t-butanol, of which only EVA was corroded, and then Observation by transmission electron microscopy (TEM), Jyo and Bassevitz hydrolyzed VAc in EVA to alcohol and dyed it with OsO_6.The results of scanning electron microscopy (SEM) showed that EVA-VC graft copolymer and EVA-PVC blend morphology.