Caprolactone기 함유 하이솔리드 도료용 아크릴수지의 최적 합성조건

Optimum Synthesis Condition of Acrylic Resins for High-Solid Coatings Containing Caprolactone Group

Acrylic resins (HSCs : EA/EMA/2-HEMA/CLA) which contain 70% solid content were synthesized by the copolymerization of monomers (2-hydroxyethyl methacrylate, ethyl acrylate, and ethyl methacrylate) and functional monomer (caprolactone acrylate : CLA) which improves the crosslinking density and physical properties of films. The physical properties of the prepared acrylic resins (HSCs) containing CLA, are as follows : viscosity 245{sim}515 cps ; Mn 2670{sim}2840 ; and conversions, 83{sim}91%, respectively. From the correlation of Tg values, viscosities, and Mn of the HSCs, it was found that viscosity and Mn increased with Tg value.