Condensation reaction of 3-(methacryloxypropyl)-trimethoxysilane and diisobutylsilanediol in non-hydrolytic sol-gel process |
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Authors: | Keum-Hee Nam Tae-Ho Lee Byeong-Soo Bae Michael Popall |
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Institution: | (1) Laboratory of Optical Materials and Coating (LOMC), Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Republic of Korea;(2) Fraunhofer-Institut für Silicatforschung Neunerplatz, 297082 Würzburg, Germany |
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Abstract: | The condensation reaction of 3-methacryloxypropyl-trimethoxysilane (MPTS) and diisobutylsilanediol (DIBSD) in a non-hydrolytic
sol-gel process was investigated in terms of the reaction time and the catalyst amount for fabrication of inorganic-organic
hybrid materials. The degree of condensation, which was characterized by 29Si NMR, 1H NMR and Abbe refractometry, increases with increased the reaction time and greater catalyst amount. However, a the large
catalyst amount breaks the methacryl group during the condensation reaction. Thus, the reaction time and the catalyst amount
were optimized to synthesize the condensed methacryl oligosiloxanes. |
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Keywords: | Hybrid materials Condensation reaction Non-hydrolytic sol-gel NMR |
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