Preparation and Characterization of a Novel Flame Retardant

Abstract:

A novel flame retardant polymethylsilsesquioxane (PMSQ) was successfully obtained via combination of non-hydrolytic and hydrolytic sol-gel routes. Chemical structure of the resultant PMSQ was determined by nuclear magnetic resonance spectroscopy, Fourier-transform infrared spectrometry and powder X-ray diffraction, respectively. All the measurements demonstrated that the product possessed regular structure with chain-to-chain width of 0.87nm and chain thickness of 0.40nm. Weight average molecular weight of PMSQ was measured to be 3.5×105 using gel permeation chromatography. Numerical simulations of the molecular structure suggested that PMSQ should exhibit cis-isotactic configuration and double helical conformation at undisturbed condition.

• Periodical: Advanced Materials Research (Volumes 47-50)
• Pages: 294-297
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.47-50.294
• Online since: June 2008
• Authors: Xiu Wei Jia, Min Zhi Rong, Ming Qiu Zhang
• Keywords: Hydrolytic Sol-Gel, Non-Hydrolytic Sol-Gel, Polysilsesquioxane

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