【摘要】 本文编制了一个简易计算机程序,测定了氟氯烷溶液沉淀聚合体系中四氟乙烯-乙烯共聚竞聚率:40℃:γC₂H₄=0.156±0.001,γC₂F₄=0.022±0.01670℃:γC₂H₄=0.197±0.001,γC₂F₄=0.055±0.020在此聚合体系中,聚合温度和共聚物组成比对链的规整性都有明显影响。当乙烯在45～55mol%范围内时,共聚物的IR随组成比而变化,利用此规律可简便地测定共聚物的组成比。更多还原

【Abstract】 This paper presents a least square computing program by which reactivityratio of tetrafluoroethylene and ethylene in Freon solution precipitation polymerizationhas been determined.The results are as follows:γ_c2H4=0.156±0.001,γ_c2F4=0.022±0.016,at 40℃ γ(c₂H₄=0.197±0.001,γ_c2F4=0.055±0.020,at 70℃The regularity of the macromolecular chain depends on the temperature of polymeri-zation and the copolymer composition,and the IR spectra of the copolymer varies withits composition.The copolymer composition（the mol% of ethylene:45-55）can be easilydetermined by the results of IR analysis.更多还原