Journal of Shanghai University(Natural Science Edition) ›› 2013, Vol. 19 ›› Issue (6): 562-566.doi: 10.3969/j.issn.1007-2861.2013.06.003

• Material Science • Previous Articles     Next Articles

Heat Resistance of Cured Arylacetylene Modified by Siloxane

WU Yong-sheng1, YU Ruo-bing1, ZHU Chang-jin1, LIU Sheng-ping1, JIAO Zheng2   

  1. WU Yong-sheng1, YU Ruo-bing1, ZHU Chang-jin1, LIU Sheng-ping1, JIAO Zheng2
  • Online:2013-12-30 Published:2013-12-30

Abstract: In order to introduce Si into poly arylacetylene (PAA), siloxane was used to blend with arylacetylene.The structure and thermal stability of the cured arylacetylene/siloxane were studied. Effect of boiling on the thermal stability of the cured arylacetylene/siloxane was also investigated. The results show that thermal stability of the cured arylacetylene/siloxane in N2 is weaker than PAA, which is affected by the amount of siloxane. Thermooxidative stability of the cured arylacetylene/siloxane is improved with an increase of siloxane. For the cured resins (mAAmVTMS=10 ∶ 5, where VTMS is vinyl trimethoxy siloxane), the residue yield at 800 ℃ in air is 23.6%. After boiling, thermal stability of the cured arylacetylene/siloxane is improved further.

Key words: arylacetylene (AA), siloxane, thermooxidative stability

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