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Interfacial Interactions of Polyaniline Grafted Alumina Hybrid
Author(s) -
Wheelwright Walt V. K.,
Ray Sudip,
Easteal Allan J.,
Cooney Ralph P.
Publication year - 2014
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201450310
Subject(s) - polyaniline , materials science , fourier transform infrared spectroscopy , surface modification , x ray photoelectron spectroscopy , chemical engineering , polymer chemistry , solvent , aniline , infrared spectroscopy , hybrid material , grafting , conductive polymer , polymerization , polymer , organic chemistry , chemistry , composite material , nanotechnology , engineering
Summary A new low solvent method of silylation followed by functionalization of oxide surfaces with polyaniline (PANI) was applied to alumina. The method comprises silylating alumina with 3‐(phenylaminopropyl)trimethoxysilane followed by grafting PANI onto the silylised surface by in situ polymerisation of aniline. A novel approach was developed for removal of PANI homopolymer formed as a by‐product was removed using 1(N)‐methyl‐2‐pyrrolidone (NMP)‐aliphatic amine binary solvent, which dedoped the emeraldine salt of PANI in a single, one‐pot procedure and made it soluble in NMP. After re‐doping with methanesulfonic acid the silylated alumina‐PANI hybrid became electrically conductive. The interfacial interactions within the hybrid material were investigated by several analytical techniques namely, elemental analysis, Fourier transform infrared spectroscopy, solid‐state 13 C and 29 Si nuclear magnetic resonance spectroscopy, X‐ray photoelectron spectroscopy and scanning electron microscopy.