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本文首次把数学期望法推广应用于多组分非线性交联反应,系统地研究了凝胶点前后体系部分性质与反应几率的关系。将重均分子量及凝胶化条件归结为简单的矩阵运算,各矩阵元的物理意义清晰、明确,可直接写出。由此导出了较为普遍的凝胶化条件,作为这些结果的重要应用,着重处理了二元高聚物共混体系的辐射交联。讨论了溶胶重均分子量和溶胶分数与吸收剂量间的关系,初步探讨了凝胶点、凝胶分数与体系组成之间的关系,给出了初始聚合物为Flory分布时,其溶胶分数与反应几率的关系式。
This paper, for the first time, applies the mathematical expectation method to the multi-component nonlinear cross-linking reaction and systematically studies the relationship between the partial properties before and after the gel point and the reaction probability. The weight average molecular weight and gelation conditions attributed to a simple matrix operation, the physical meaning of each matrix element is clear, clear, and can be directly written. As a result, more general gelation conditions were derived. As an important application of these results, radiation crosslinking of the binary polymer blend system was emphasized. The relationship between the weight average molecular weight of sol and the absorbed dose was discussed. The relationship between gel point and gel fraction and the composition of the system were discussed preliminarily. When the initial polymer was Flory distribution, the sol fraction and reaction Probability of the relationship.