Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Synthesis of Silicone/Acrylic Resins for Super-Weatherable Coatings

초내후성 도료용 실리콘/아크릴수지의 합성

  • Kim, Seong-Kil (Sam-Hwa Paints Ind. Co. Ltd.) ;
  • Choi, Yong-Ho (Division of Ceramic and Chemical Engineering, Myong Ji University) ;
  • Park, Hong-Soo (Division of Ceramic and Chemical Engineering, Myong Ji University)
  • 김성길 (삼화페인트공업(주)) ;
  • 최용호 (명지대학교 공과대학 세라믹화학공학부) ;
  • 박홍수 (명지대학교 공과대학 세라믹화학공학부)
  • Published : 1999.06.30
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Abstract

The objectives of this study is to investigate the optimum reaction conditions and to identify the product formula in the synthesis of a silicone/acrylic resin that curing in moisture at room temperature. By the addition polymerization of monomers, n-butyl acrylate, methyl methacrylate, n-butyl methacrylate, and 3-methacryloxypropyltrimethoxysilane. a quarter polymer was obtained. Among various initiators investigated in this study, 2.2'-azobisisobutyronitrille was found to be the most suitable initiator. The optimum reaction conditions found in this study are 70 wt% of initial solvent amount, 120 minutes of dropping time, 3 times of initiator addition, $82{\sim}105^{\circ}C$ of reaction temperature, and 8 hrs of reaction time. Also, number average molecular weight of $11700{\sim}33100$ and molecular weight distribution of $1.81{\sim}3.44$ were obtained.

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