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Development of environmental friendly castor oil‐based waterborne polyurethane dispersions with polyaniline
Author(s) -
Gurunathan T.,
Arukula Ravi,
Suk Chung Jin,
Rao Chepuri R.K.
Publication year - 2016
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.3797
Subject(s) - castor oil , materials science , polyaniline , thermogravimetric analysis , polyurethane , isophorone diisocyanate , fourier transform infrared spectroscopy , antistatic agent , thermal stability , sulfonic acid , chemical engineering , conductive polymer , differential scanning calorimetry , polymer chemistry , polymer , nuclear chemistry , composite material , organic chemistry , polymerization , chemistry , engineering , thermodynamics , physics , layer (electronics)
This study describes the fabrication and characterization of castor oil‐based waterborne polyurethane/polyaniline (COWPU/PAni) conducting polymer blend films. The COWPU synthesized from isophorone diisocyanate was reacted with castor oil to form prepolymers, which were chain extended by reacting it with N ‐methyldiethanolamine. Quaternization and self‐emulsification including deionized water followed in COWPU dispersions. Also, COWPU/PAni hybrid dispersions were synthesized with 2, 4, and 6 wt% of PAni–dodecyl benzene sulfonic acid to make different conductive composites. The outcome of COWPU/PAni was characterized by Fourier transform infrared spectrometer, differential scanning calorimeter, thermogravimetric analysis, dynamic mechanical and thermal analyzer, and scanning electron microscopy analysis. According to Fourier transform infrared spectrometer analysis, hydrogen bonding appears between –NH of PAni and CO of COWPU. Meanwhile, incorporating PAni can improve the thermal stability of COWPU. The resulting COWPU/PAni conducting blend films can be used as antistatic and anticorrosive coating materials. Copyright © 2016 John Wiley & Sons, Ltd.