Thermal degradation mechanisms of aluminium phosphinate, melamine polyphosphate and zinc borate in poly(methyl methacrylate)

Date

2011-10-01

Author

Orhan, Tugba
Isitman, Nihat Ali
Hacaloğlu, Jale
Kaynak, Cevdet

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The aim of this study was to investigate the thermal degradability, and in particular, the thermal degradation mechanism of organophosphorus flame-retardant poly(methyl methacrylate) (PMMA). For this purpose thermogravimetry and direct pyrolysis mass spectrometry analyses were used. Release of diethylphosphinic acid, melamine, and several products involving Al-O-P and N-P linkages were detected from the organophosphorus additive containing aluminium diethylphosphinate, melamine polyphosphate and zinc borate. When incorporated in PMMA, reactions of diethylphosphinic acid, melamine and/or their derivatives with the ester group affected the decomposition pathways by generation of (C(2)H(5))(2)POOCH(3) and HNCO at relatively high temperatures. (C) 2011 Published by Elsevier Ltd.

Subject Keywords

PMMA, Organophosphorus flame retardant, Organophosphorus flame retardant, Direct pyrolysis mass spectrometry, Thermal degradation

URI

https://hdl.handle.net/11511/30912

Journal

POLYMER DEGRADATION AND STABILITY

DOI

https://doi.org/10.1016/j.polymdegradstab.2011.07.019

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

T. Orhan, N. A. Isitman, J. Hacaloğlu, and C. Kaynak, “Thermal degradation mechanisms of aluminium phosphinate, melamine polyphosphate and zinc borate in poly(methyl methacrylate),” POLYMER DEGRADATION AND STABILITY, pp. 1780–1787, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30912.