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基于自由基凝胶化反应的基本原理，在一个具有周期性边界条件的二维网络上，利用动态ＭｏｎｔｅＣａｒｌｏ 方法模拟了聚合物凝胶的自由基凝胶化反应，得到了凝胶的具体结构，研究了总单体浓度（ 单体浓度和交联剂浓度之和） 对凝胶的分形结构和孔径分布的影响．模拟中首次考虑了聚合后单体的运动对凝胶结构的影响．结果表明：考虑聚合后单体的运动，可使所得凝胶网络的分形维数和凝胶化所需的最低浓度均显著小于动力学凝胶化模型和ＤＬＡ 模型的相应值．用移动气泡法得到了凝胶网络的孔径分布，发现凝胶网络中大孔所占百分率明显多于随机纤维网络模型．
Based on the basic principle of free radical gelation reaction, a dynamic Monte Carlo method was used to simulate the free radical gelation of polymer gels on a two-dimensional network with periodic boundary conditions. The specific structure of gels was obtained. The effect of total monomer concentration (sum of monomer concentration and crosslinker concentration) on the fractal structure and pore size distribution of the gel was investigated. For the first time, the effect of monomer movement on the gel structure was considered in the simulation. The results show that the fractal dimension of the obtained gel network and the minimum concentration required for gelation are all considered to be significantly smaller than those of the kinetic gelation model and the DLA model considering the movement of monomers after polymerization. The pore size distribution of the gel network was obtained by the moving bubble method. It was found that the percentage of macropores in the gel network was significantly higher than that of the stochastic fiber network model.