文献类型：期刊文献

英文题名：Study on the copolymers of silicon-containing arylacetylene resin and acetylene-functional benzoxazine

作者：Huang, Jianxiang[1];Du, Wei[2];Zhang, Jian[1];Huang, Farong[1];Du, Lei[1]

机构：[1]E China Univ Sci & Technol, Key Lab Specially Funct Polymers & Relat Technol, Minist Educ, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[2]Shanghai Composites Sci & Tech Co Ltd, Shanghai, Peoples R China

年份：2009

卷号：62

期号：2

起止页码：127

外文期刊名：POLYMER BULLETIN

收录：;EI(收录号：20090711905076);WOS:【SCI-EXPANDED(收录号:WOS:000263063800002)】；

基金：We gratefully acknowledged the financial support of the National High Technology Research and Development Program of China ( Grant No. 2002AA305205) and the National Basic Research Program of China ( Grant No. 5131101).

语种：英文

外文关键词：Silicon-containing arylacetylene resins; Acetylene-functional benzoxazine; Thermal property; High performance resin; Advanced composite

摘要：An acetylene-functional benzoxazine (AFBEN) which was used to modify poly(dimethylsilyleneethynylenephenyleneethynylene) (DMSEPE) was synthesized by a solventless procedure. The modified resins (DMSEPE/AFBEN) were obtained by blending DMSEPE and AFBEN in different amount. The thermopolymerization of DMSEPE/AFBEN resins were investigated by DSC technique. The dynamic mechanical analysis showed that the storage modulus (E) of the cured DMSEPE/AFBEN resin containing less than 30 wt% AFBEN did not decrease at the temperature lower than 500 A degrees C. When the AFBEN loading increased from 20 to 100 wt%, a decrease in glass transition temperature from 523 to 342 A degrees C was observed. The thermal stability of the cured DMSEPE/AFBEN resins was determined by thermogravimetric analysis (TGA) in N-2 and air. The TGA results showed the cured DMSEPE/AFBEN resins had good thermal stability. The carbon fiber (T700) reinforced DMSEPE/AFBEN composites exhibited excellent mechanical properties (flexural strength: 1,694 MPa) at room temperature and high strength remaining of 76% at 300 A degrees C.