Lim, Jun Shin, Dong Geun Yeo, Hyeonuk Goh, Munju Ku, Bon-Cheol Yang, Cheol-Min Lee, Dong Su Hwang, Jun-Yeon Park, Byoungnam You, Nam-Ho 2024-01-20T09:31:01Z 2024-01-20T09:31:01Z 2021-09-05 2014-07-15 0887-6266 https://pubs.kist.re.kr/handle/201004/126589 Polyimide (PI)-based nanocomposites containing aminophenyl functionalized multiwalled carbon nanotubes (AP-MWCNTs) obtained through a diazonium salt reaction was successfully prepared by in situ polymerization. PI composites with different loadings of AP-MWCNTs were fabricated by the thermal conversion of poly(amic acid) (PAA)/AP-MWCNTs. The mechanical and electrical properties of the AP-MWCNTs/PI composites were improved compared with those of pure PI due to the homogeneous dispersion of AP-MWCNTs and the strong interfacial covalent bonds between AP-MWNTs and the PI matrix. The conductivity of AP-MWNTs/PI composites (5:95 w/w) was 9.32 x 10(-1) S/cm which was about 10(15) times higher than that of Pure PI. The tensile strength and tensile modules of the AP-MWCNTs/PI composites with 0.5 wt % of AP-MWCNTs were increased by about 77% (316.9 +/- 10.5 MPa) and 25% (8.30 +/- 1.10 GPa) compared to those of pure PI, respectively. (C) 2014 Wiley Periodicals, Inc. English WILEY-BLACKWELL GRAPHENE FILMS The Mechanical and Electrical Properties of Carbon Nanotube-Grafted Polyimide Nanocomposites Article 10.1002/polb.23515 1 JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, v.52, no.14, pp.960 - 966 JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 52 14 960 966 scie scopus 000338016000006 2-s2.0-84902485142 Polymer Science Polymer Science Article GRAPHENE FILMS carbon nanotube diazonium salt reaction multi-walled carbon nanotubes nanocomposite polyimide