Abstract: The polytitanium(octyl)siloxane was synthesized by direct polymerization method. The structures and Mn of the polytitanium(octyl)siloxane were analyzed by FT-IR,1H-NMR and GPC;the OH-groups were investigated by chemical titration; the properties were texted by dynamic viscometer and TGA. Furthermore,the influencing factors such as reaction temperature and time,solvent type and silicon/titanium molar ratio on yield were also systematically studied. The results show that the polytitanium(octyl)siloxane was successfully synthesized with the yield of about 85%, and the product not only has good liquidity (125 Pa·s,50 ℃),but also the thermal decomposition temperature increases from 370 ℃ to about 448 ℃,and the char yield is 39% at 800 ℃.
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2020, Vol. 34 
