文献类型：期刊文献

英文题名：The synthesis and properties of silicon-containing arylacetylene resins with rigid-rod 2,5-diphenyl-[1,3,4]-oxadiazole moieties

作者：Ma, Manping[1];Gong, Changjun[1];Li, Chuan[1];Yuan, Qiaolong[1];Huang, Farong[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Specially Funct Mat & Related Technol, Shanghai 200237, Peoples R China

年份：2021

卷号：143

外文期刊名：EUROPEAN POLYMER JOURNAL

收录：;EI(收录号：20210109732126);WOS:【SCI-EXPANDED(收录号:WOS:000605760100017)】；

基金：The authors gratefully acknowledge the support of the Fundamental Research Funds for the Central Universities (No. 50321042017001).

语种：英文

外文关键词：Silicon-containing arylacetylene resin; 2,5-Diphenyl-[1,3,4]-oxadiazole; High performance resin; Advanced composites

摘要：The silicon-containing arylacetylene resins with 2,5-diphenyl-[1,3,4]-oxadiazole moieties (PODSA-MM, PODSA-MP and PODSA-PP) in the main chains were synthesized by Grignard reactions and characterized by proton nuclear magnetic resonance (H-1 NMR) spectroscopy, fourier transform infrared (FT-IR) spectroscopy, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA). The results show that the resins have good solubility, processability, low water absorption, good thermal and mechanical properties. The resins could be cured at a temperature lower than 200 degrees C. The flexural strength and modulus of the cured PODSA-MP resin at room temperature are 69.6 MPa and 2.5 GPa, respectively. T300 carbon fibre cloth reinforced PODSA-MP resin composite shows high flexural strength (673 MPa) and modulus (64.4 GPa) as well. The temperatures at 5% weight loss (T-d5) of the cured resins are higher than 450 degrees C in nitrogen and air.