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Published in: Journal of Polymer Research 3/2020

01-03-2020 | ORIGINAL PAPER

Polypyrrole inter-layered low temperature curing benzoxazine matrices with enhanced thermal and dielectric properties

Authors: P. Prabunathan, A. Vasanthakumar, M. Manoj, A. Hariharan, M. Alagar

Published in: Journal of Polymer Research | Issue 3/2020

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Abstract

In the present work, curing reaction of benzoxazine was studied with the incorporation of different weight percentage of polypyrrole (PPy). Conventional benzoxazine derived from Bisphenol-F, aniline (BF-a) and bio-based benzoxazine derived from cardanol, furfurylamine (C-f) were synthesized and studied. Significant change in curing temperature (Tp) was observed with the addition of PPy to both C-f and BF-a monomers. With the incorporation of 5 wt% PPy, the Tp of C-f significantly reduced from 245 °C to 185 °C and similarly for BF-a monomer from 226 °C to 165 °C. The plausible mechanism of the benzoxazine ring opening reaction in presence of PPy is also discussed. Further, scanning electron microscopy (SEM) and X-ray diffraction studies suggest that the incorporation of PPy leads to the formation of fractal morphology. Consequently, the PPy inter-layered poly(C-f) and poly(BF-a) matrices contribute to the achievement of low value of dielectric constant (K = 3.39 and 3.83). In addition, PPy interlayer provokes enhanced thermal stability and higher LOI value. Thus, the present work demonstrates the catalytic role of PPy towards the curing reaction of benzoxazines and its contribution towards thermal and dielectric behaviour the of resulted matrices.

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Appendix
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Metadata
Title
Polypyrrole inter-layered low temperature curing benzoxazine matrices with enhanced thermal and dielectric properties
Authors
P. Prabunathan
A. Vasanthakumar
M. Manoj
A. Hariharan
M. Alagar
Publication date
01-03-2020
Publisher
Springer Netherlands
Published in
Journal of Polymer Research / Issue 3/2020
Print ISSN: 1022-9760
Electronic ISSN: 1572-8935
DOI
https://doi.org/10.1007/s10965-020-2022-z

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