Reaction-induced phase separation of pseudo-interpenetrating polymer networks in polydisperse polymer blends:A simulation study

摘要

We develop a minimal model for the process of reaction-induced phase separation in a polydisperse polymer blend.During the reaction,one component undergoes polymerization,leading to phase separation via spinodal decomposition.The effect that changing the final degree of polymerization has on the phase-separation process is studied.Finally an elastic energy term is included mimicking the cross-linking process and the generation of a semi-interpenetrating polymer network.We show that the scaling of the dominant lengthscale with time varies according to the reaction conditions.