Dynamics of phase separation induced by radical polymerization

摘要

Isomeric chlorostyrene monomer exhibited different phase separation behavior when it was radically polymerized in a mixture with polystyrene. In the2-chlorostyrene system, domain structure changed from droplets to continuous domains depending on temperature, and the strong thermal-history dependence was observed. In the 4-chlorostyrene system, size of droplets showed bimodal distribution. Results of computer simulation suggested that drastic decrease in mobility with the increase in conversion played an important role in the formation of bimodal size distribution. [References: 5]