Related Experiment Video
Updated: Jun 23, 2026
Functionalization of Single-walled Carbon Nanotubes with Thermo-reversible Block Copolymers and Characterization by Small-angle Neutron Scattering
Published on: June 1, 2016
Functionalization of multi-walled carbon nanotubes with a silane coupling agent and synthesis of polyimide
Qingxin Zhang1, Kimiyoshi Naito, Yutaka Kagawa
1Composites and Coatings Center, National Institute for Materials Science, Sengen, Tsukuba, 305-0047, Japan.
Abstract:
Multi-walled carbon nanotubes (MWCNTs) were modified with an H2SO4/HNO, acid treatment, and subsequently functionalized with a (3-glycidyloxyporpl)trimethoxysilane coupling agent. The functionalized MWCNTs showed considerably improved dispersion in H2O and N-Methyl-2-pyrrolidinone (NMP), and the MWCNT suspension exhibited long-term stability. The functionalized MWCNTs were characterized with Raman spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, and scanning electron microscopy (SEM) with an attached energy dispersive X-ray analyzer. Polyimide (PI)/MWCNT nanocomposites were synthesized from 4,4'-oxydianiline (ODA) and 3,3',4,4'-benzophenonetetracarboxylic dianhydride (BTDA) using NMP as solvent. Improved MWCNT dispersion and enhanced interfacial adhesion were observed on the tensile fracture surfaces of the polyimide nanocomposite with functionalized MWCNTs.
