• De-Xin Tan
• Yan-Li Wang

A novel propyltri(phenylethynyl)silane monomer (PTPES) was synthesized with ethyl bromide, propyltrichlorosilane and phenylacetylene by Grignard reaction. The molecular structure was characterized by FT-IR, 1H-NMR, 13C-NMR, and 29Si-NMR. The poly(propyltri(phenylethynyl)) silane (PPTPES) was also prepared by thermal polymerization and the corresponding thermal degradation kinetics and mechanism were also studied with TG-DTG technology combining with model and model-free fitted methods. Results show that the activation energy and the pre-exponential factor were about Ea=219.69 kJ/mol and lgA=10.45 s-1 based on Kissinger, Ozawa, Coats-Redfern, Achar, Friedmen and Vyazovkin-Wight methods. The degradation mechanism obeyed 2D diffusion and the mechanism function were and .

propyltri(phenylethynyl)silane; Grignard reaction; thermal degradation kinetics; degradation mechanism

"Synthesis and thermal degradation kinetics of poly(propyltri(phenylethynyl)) silane", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.349-358, May-2019, Available :http://www.jetir.org/papers/JETIRBM06055.pdf

"Synthesis and thermal degradation kinetics of poly(propyltri(phenylethynyl)) silane", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp349-358, May-2019, Available at : http://www.jetir.org/papers/JETIRBM06055.pdf