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صفحه اصلی
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بیست و نهمین کنفرانس شیمی آلی ایران
Comparison of DSC curves Copolymerization of vinyl acetate- butyl acrylate with different percentage of PVA
نویسندگان :
Farahnaz Hamdi Holasoo ( موسسه تحقیقات اصلاح و تهیه بذر چغندرقند )
کلید واژه ها :
Copolymerization،DSC،Polyvinyl alcohol،Tg
چکیده مقاله :
In this study, the DSC (Differential Scanning Calorimetry) curves of copolymerization of vinyl acetate- butyl acrylate in the presence of different percentage of PVA investigated [1]. A vinyl acetate- butyl acrylate Copolymer was prepared by aqueous emulsion polymerization which contained 70 to 30 % of monomers in the presence of anionic surfactants and Potassium Persulfate (KPS) initiator, PVA 10% and PVA 15% at 70 ° C and at 3 hours [2]. Results show that the Tg value in different percentage are difference (Scheme) and copolymerization has taken place between vinyl acetate and butyl acrylate. Therefore, it is possible, the influence of protective colloid in this type of emulsion copolymerization [1,3].
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