基于键长涨落格子模型和动态蒙特卡罗模拟方法,引入疏水相互作用,对均聚高分子链坍塌转变动力学过程进行了模拟研究.模拟发现,其坍塌时间呈高斯分布,而平均坍塌时间随淬火深度的变化类似于蛋白质折叠,但难以发现局部最小;另外,平均坍塌时间随链长呈指数形式变化.在其坍塌动力学过程中,高分子链构象先由橄榄球状演变为项链状,进而演变为香肠状,最后形成近球状的熔融球;基于团簇数目、团簇大小和非球面参数等参量,对前人提出的动力学过程四阶段划分进行了更为清晰的界定. Based on the bond length fluctuation lattice model and the dynamic Monte Carlo simulation method, the hydrophobic interaction was introduced to simulate the kinetics of the collapse transformation of homopolymer chains. The simulation shows that the collapse time is Gaussian distribution, while the average collapse time The change with depth of quenching is similar to that of protein folding, but it is hard to find the local minimum. In addition, the average collapse time varies exponentially with the chain length. In the process of collapse, the conformation of polymer chains evolves from rugby to necklace, And then evolve into a sausage-like shape. Finally, a nearly spherical molten ball is formed. Based on the parameters such as the number of clusters, the size of clusters and the parameters of aspherical surfaces, the four stages of the kinetic process proposed by the predecessors are more clearly defined.