| 초록 |
The effect of nonreactive commercially available elastomers, vinyl acetate based copolymer and aliphatic/aromatic based resin, on the UV photopolymerization kinetics of a methacrylate resin has been studied. As a reactive solvent N-vinyl-2-pyrrolidone(NVP) was used and then volatile-free homogeneous liquid blend was obtained. An increase in elastomers content caused a decrease in both photopolymerization rates and final conversions. In the latter stage of photopolymerization diffusion-controlled reaction should be considered due to incorporation of high MW polymers in the matrix. Visual transparancy was maintained with no evidence for phase separation for the time period of photopolymerization. |
