Thermal degradation of poly(n-butyl methacrylate), poly(n-butyl acrylate) and poly(t-butyl acrylate)

Date

2013-11-01

Author

Ozlem, Suriye
Hacaloğlu, Jale

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Direct pyrolysis mass spectrometry findings revealed that thermal decompositions of poly(n-butyl methacrylate), PnBMA, poly(n-butyl acrylate), PnBA, and poly(t-butyl acrylate), PtBA, follow different decomposition pathways. Among these polymers thermal degradation via depolymerization is only major decomposition routes for PnBMA. Thermal degradation of PnBA proceeds through simultaneous and subsequent processes, involving gamma-hydrogen transfer to carbonyl group from the main chain to carbonyl groups yielding mainly six-membered cyclic products and butanol. On the other hand, decomposition of PtBA starts by elimination of C4H8 by gamma-hydrogen transfer reactions from the t-butyl groups to the carbonyl groups producing poly(acrylic acid) chains by elimination of isobutene. Subsequent losses of H2O, CO2 and CO yield unsaturated linkages and crosslinked structures that decompose at elevated temperatures. (C) 2013 Published by Elsevier B.V.

Subject Keywords

Poly(N-Butyl Methacrylate), Poly(N-Butyl Acrylate), Poly(T-Butyl Acrylate), Thermal Degradation, Pyrolysis Mass Spectrometry

URI

https://hdl.handle.net/11511/31397

Journal

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS

DOI

https://doi.org/10.1016/j.jaap.2013.08.008

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

S. Ozlem and J. Hacaloğlu, “Thermal degradation of poly(n-butyl methacrylate), poly(n-butyl acrylate) and poly(t-butyl acrylate),” JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, pp. 161–169, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31397.