| 초록 |
Interpenetrating polymer networks(IPN) based on diglycidyl ether of bisphenol-A(DGEBA) and dimethacrylate prepolymer were blended and cured by using benzoyl peroxide(BPO) and 4,4·-methylenedianiline(MDA) as initiating and curing agent, respectively. The morphology of the IPNs was observed by SEM and showed the micro-separated phase, in which 10-20 nm size in diameter of dimethacrylate islands uniformly dispersed. The size of the separated islands strongly depends on the molecular weight and the type of the dimethacrylate prepolymer. Morphologies of hard- and flexible-backboned urethane dimethacrylate and epoxy dimethacrylate prepolymers were compared in the present study. |
