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Vinylhydridosilsesquioxne: Synthesis and characterization of a potential filler material for vinyl-containing polysiloxanes |
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| Authors: | Saino Yesudas K. J. Sreejith V. Vipin Vijay |
| Affiliation: | 1. Department of Chemistry, Mahatma Gandhi College, Thiruvananthapuram, Kerala, India Contribution: Investigation (supporting);2. Ceramic Matrix Products Division, Vikram Sarabhai Space Centre, Indian Space Research Organisation, Thiruvananthapuram, Kerala, India Contribution: Writing - review & editing (equal);3. Ceramic Matrix Products Division, Vikram Sarabhai Space Centre, Indian Space Research Organisation, Thiruvananthapuram, Kerala, India |
| Abstract: | This paper reports the synthesis and characterization of an organic silsesquioxane (SQ) containing Si vinyl and Si H groups named as vinylhydridosilsesquioxane (SQVH-12). Detailed investigation of the structure of this organosilsesquioxane revealed that SQVH-12 has a highly cross-linked (polycyclic) Si O network of silsesquioxane with Si vinyl and Si H functional groups. Thermogravimetric analysis of the pyrolysis behavior of SQVH-12 yielded a high percentage of ceramic residue (~92%) at 1200°C under an argon atmosphere. The presence of functional groups in SQVH-12 and the high rate of ceramic residue highlights the potential usefulness of SQVH-12 as a filler for vinyl-containing polysiloxanes. Thus, further research of SQVH-12 can find applications in a wide variety of areas such as additive manufacturing, protective coatings, and advanced composites. |
| Keywords: | polymer-derived cerami preceramic polymer silicon oxycarbide silsesquioxane |