【摘要】 采用红外光谱法测定了不同转化率下 DBTM-St-MMA三元共聚体系共聚物的组成 .根据改进的欧拉公式 ,解得 Alfrey-Goldfinger微分方程的数值积分 ,将单纯形调优法与数值积分法相结合 ,建立数学模型并编写微机程序 .应用所编制的程序 ,根据三元共聚体系的起始组成和不同转化率下共聚物的组成 ,计算该三元共聚体系单体的竞聚率 .更多还原

【Abstract】 WT5BZ]The compositions of DBTM St MMA tercopolymers at different conversion were investigated by IR. The Alfrey Goldfinger differential equation was worked out by improved Eura formula. The simplex optimization method and numerical integration were combined and employed to set up a mathematics model, and a microcomputer program was worked out. The program was used to compute the reactivity ratios of the monomers in DBTM St MMA tercopolymer system according to the initial composition of monomers and the composition of the copolymer at any conversion.更多还原