하이솔리드 도료용 카프로락톤기 함유 80% 고형분인 아크릴수지의 합성

Synthesis of Acrylic Resins Containing Caprolactone Group and 80% Solid Contents for High-Solid Coatings

Acrylic resins (HSCs : EA/EMA/2-HEMA/CLA) which contain 80% solid content were synthesized by the copolymerization of monomers (ethyl acrylate, ethyl methacrylate, 2-hydroxyethyl 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 1440^{sim}2630 cps ; M_n 1590^{sim}1660 ; and conversions, 81^{sim}86%, respectively. From the correlation of T_g values, viscosities, and M_n of the HSCs, it was found thst viscosity and M_n increased with T_g value.