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Synthesis and characterization of a novel arylacetylene oligomer containing POSS units in main chains |
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| Authors: | Qiang Li Xiaodong Hang Farong Huang Lei Du Zhongpin Li |
| Institution: | a Key Laboratory for Ultrafine Materials of Ministry of Education, School of Material Science and Engineering, East China University of Science and Technology, P.O. Box 399, 130 Meilong Road, Shanghai 200237, PR China b Shanghai Bureau of Astronautics, Shanghai 200233, PR China c Aerospace Research Institute of Material & Processing Technology, 1 Dahongmen Road, Beijing 100076, PR China |
| Abstract: | A novel arylacetylene oligomer containing octamethyl POSS units in main chains was prepared from difluoride octamethyl POSS (diexo-(CH3)8Si8O11F2) and diethynylbenzene (DEB) by Grignard reaction and characterized by FT-IR, NMR, WAXD, GPC, DSC, and TGA. The curing reaction kinetic of the oligomer was studied by Kissinger and Ozawa methods and the kinetic parameters were obtained. The cured polymer had good thermal and thermal-oxidative properties. TGA analyses demonstrated that the thermal decomposition temperature (Td5) of the cured polymer in nitrogen and air were 503 and 479 °C, respectively. |
| Keywords: | Arylacetylene oligomer Octamethyl polyhedral oligomeric silsesquioxane (OMPOSS) Inorganic-organic hybrid material Thermal stability polymer |
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