【摘要】 本文对丙烯酸丁酯和丙烯酸乙酯的共聚合作了研究.并采用均聚共混方法制备标准样品,由红外光谱法分别测定标准样品和共聚样品中乙基和羧基的相对峰高。从而测得共聚大分子链节比(摩尔),最后用YBR法求得二元共聚竞聚率,从而判断丙烯酸丁酯和丙烯酸乙酯的共聚组成。更多还原

【Abstract】 In this paper a study on the suspension copolymerization of acrylates of ethyl and butyl was made, using blends of homopolymers of the two monomers as standard samples. In their IE-spectra, relative heights of the characteristic absorption crests of the carbonyl-and ethyl groups in both standard samples and copolymers were taken and the ratios of the two monomers contained in the copolymers were calculated. Finally the suspension copolymer activity ratios of these two monomers were determined by the YBR-method and the copolymerization features of the ethyl-and butyl acrylates were estimated.更多还原