【摘要】 分析了线性高分子的降解机理,确立了线性高分子降解的四种数学模型,采用Visual C++编制了模拟线性高分子降解的程序,并用该程序对聚二甲基硅氧烷的降解进行了模拟,得到了聚二甲基硅氧烷降解的分子量分布图,并对模拟结果进行了简要的分析。更多还原

【Abstract】 Linear polymer degradation mechanism is analysd in this paper,it is assumed that Constitute chains or bonds have equal probability to break down.Mathematical algorithm,iterative algebraic exact statistical formulation methods are presented to implement this model and simuate the evolution of resultant temporal MW distribution.The mathematical models described above have been devel- oped and implemented in a computer program,written in object-oriented programming Language Visual C++.Polydimetlylsiloxane degradation for midpoint scission,percent scission,Unzip scission and random scission are simulated,molecular weight distribution curve and data are obtained,then the results are briefly analysed.更多还原