▎ 摘　　要

Polymer composites with carbon-based nano-fillers have generated significant interest in industry and science because of their multifunctional and valuable properties. An APA-functionalized GO nanofiller (GO-APA) was prepared through the reaction between graphene oxide (GO) and 3-aminophenyl acetylene (APA) in dimethylformide (DMF) with ammonia hydroxide. Furthermore the PDSEPE/GO-APA composites were made from Poly(dimethysilyleneethynylenephenylene ethynylene) (PDSEPE) and GO-APA. FT-IR, XRD, XPS, SEM, DSC and TGA techniques were used to characterize the chemical compositions and physical and chemical properties of GO-APA and PDSEPE/GO-APA composites. As a result, the prepared PDSEPE/GO-APA composites show high thermal stabilities, excellent electrical conductivity and good flexural strength. When the weight percentage of GO-APA reaches 0.5%, the PDSEPE/GO-APA composite electrical conductivity increases by 6 orders of magnitude and the flexural strength improves by nearly 33% compared with that of cured PDSEPE resin. Copyright (c) 2015 John Wiley & Sons, Ltd.