动力学
聚合物
渡线
分子动力学
热力学
材料科学
聚合
相(物质)
化学物理
高分子化学
化学
物理
计算化学
有机化学
经典力学
计算机科学
人工智能
复合材料
作者
Awaneesh Singh,Sanjay Puri,Chandan Dasgupta
摘要
We present detailed results from a molecular dynamics (MD) simulation of phase-separation kinetics in polymer mixtures. Our MD simulations naturally incorporate hydrodynamic effects. We find that polymeric phase separation (with dynamically symmetric components) is in the same universality class as segregation of simple fluids: the degree of polymerization only slows down the segregation kinetics. For d = 2 polymeric fluids, the domain growth law is L(t) ∼ tϕ with ϕ showing a crossover from 1/3 → 1/2 → 2/3. For d = 3 polymeric fluids, we see the crossover ϕ = 1/3 → 1. Our MD simulations do not yet access the inertial hydrodynamic regime (with L ∼ t2/3) of phase separation in 3-d fluids.
科研通智能强力驱动
Strongly Powered by AbleSci AI