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Preparation and characterization of polyaniline–1‐hydroxyethane 1,1‐diphosphonic acid salt and its application as a catalyst for the synthesis of N ‐benzylidine‐2‐phenyl imidazo[1,2‐a]pyridines
Author(s) -
Palaniappan Srinivasan,
Rajender Boddula,
Ravi Bolagam
Publication year - 2013
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.39456
Subject(s) - polyaniline , catalysis , fourier transform infrared spectroscopy , salt (chemistry) , conductive polymer , polymer , conductivity , characterization (materials science) , spectroscopy , infrared spectroscopy , polymer chemistry , materials science , scanning electron microscope , chemistry , chemical engineering , nuclear chemistry , inorganic chemistry , organic chemistry , nanotechnology , polymerization , physics , composite material , quantum mechanics , engineering
A novel, efficient, and easily synthesizable catalyst, an emeraldine form of polyaniline (PANI)−1‐hydroxyethane 1,1‐diphosphonic acid salt (HEDP), was successfully synthesized and demonstrated as a reusable polymer‐based solid acid catalyst in the synthesis of N ‐benzylidine‐2‐phenyl imidazo[1,2‐a]pyridines with 2‐aminopyridine with aromatic aldehydes and trimethyl silylcyanide at room temperature. PANI–HEDP was characterized by Fourier transform infrared spectroscopy, energy‐dispersive X‐ray spectroscopy, X‐ray diffraction, field emission scanning electron microscopy, and conductivity measurements. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 2995–3000, 2013