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首页> 外文期刊>Macromolecular theory and simulations >Prediction of sol fraction and average molecular weights after gelation for non-linear free radical polymerizations using a kinetic approach
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Prediction of sol fraction and average molecular weights after gelation for non-linear free radical polymerizations using a kinetic approach

机译：使用动力学方法预测非线性自由基聚合凝胶化后的溶胶分数和平均分子量

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Mass balance equations in terms of the moment generating function of the distribution of mole concentrations of polymer species for free radical copolymerizations of mono/divinyl monomers could be numerically solved after gel point using open source code ACDC, needed for extremely stiff two-point boundary value problems. For the first time, it became possible to compare the error of earlier well-known approximated estimation methods for the weight fraction of sol and average molecular weights to this accurate mathematical solution, It turns out that predictions by the pseudo-kinetic method are reasonable only when equal reactivity of double bonds prevails, causing early gelation in the batch reactor. Otherwise the discrepancies between the exact and approximate solutions are quite important. [References: 24]
机译：对于单/二乙烯基单体进行自由基共聚，根据聚合物种类的摩尔浓度分布的矩量产生函数，可以通过凝胶化数值后使用开放源代码ACDC数值求解质量平衡方程，这对于极硬的两点边界值是必需的问题。首次有可能将较早的众所周知的溶胶重量分数和平均分子量的近似估计方法的误差与这种精确的数学解决方案进行比较，事实证明，拟动力学方法的预测仅是合理的当双键相等的反应性占优势时，导致间歇反应器中的早期凝胶化。否则，精确解与近似解之间的差异就非常重要。 [参考：24]

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