Synthesis of Poly (Hydroxyethyl Acrylate) via Frontal Free-Radical Polymerization

摘要

During the past three decades, a significant advance in nonlinear dynamics is FP since FP is a promising new technique for synthesizing uniform polymers and polymeric networks in a rapid fashion. FP is a mode of converting a monomer into a polymer via a localized reaction zone that propagates through the coupling of thermal diffusion and temperature-dependent reaction rates (Figure 1). In this mode, the thermal radiation stemming from the exothermic polymerization is the main heat source. The localized reaction zone and the fast increasing temperature allow the rapid synthesis of many polymers with spatially controlled microstructures and morphologies. In 1972, the first FP reactions were discovered by Chechilo and Enikolopyan, who studied methyl methacrylate (MMA) polymerization in adiabatic conditions under high pressure (> 3000 atm). Recently, Pojman et al. demonstrated frontal polymerization with thiol-ene systems and with a microencapsulated initiator. Chen et al. reported on segmented polyurethane and polyurethane-nanosilica hybrid nanocomposites synthesized by frontal polymerization.