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Study on Pyrolysis Behavior of Polybenzoxazine by PyGC-MS

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Abstract:

Pyrolysis behavior of a new kind of polybenzoxazine with aldehyde groups was investigated by pyrolysis gas chromatography-mass spectroscopy (PyGC-MS) at the temperatures ranging from 450°C to 750°C. It was found from the pyrolysis chromatograms that the type and amount of its pyrolysates obviously change with pyrolysis temperature due to various pyrolysis behaviors at different temperatures. From the structures and relative contents of the pyrolysates, the pyrolysis mechanism of the polybenzoxazine was described as follows: the initial degradation reactions occurred mainly at the Cmethylene-N bond, followed by the Cphenyl-C methylene bonds.

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Periodical:

Advanced Materials Research (Volume 1088)

Pages:

318-321

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1088.318

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Online since:

February 2015

Authors:

Dan Li Lin*

Keywords:

Polybenzoxazine, Pyrolysates, Pyrolysis Behavior, Pyrolysis Gas Chromatograph-Mass Spectroscopy

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