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090			_aB-16494
245	1	0	_aThermal degradation of poly(alkyl acrylates). I. Preliminary investigations
490	0		_vJournal of Polymer Science. Part A Polymer Chemistry, 9, p.919-926, 1971
520	3		_aA qualitative survey of the thermal degradation reactions which occur in poly(ethyl acrylate), poly(n-propyl acrylate), poly(isopropyl acrylate), poly(n-butyl acrylate)and poly(2-ethylhexyl acrylate)has been made by using three thermal analytical methods: thermogravimetric analysis (TGA), thermal volatilization analysis (TVA), and the dynamic molecular still (DMS), all combined with infrared and mass spectrometry. Degradation in poly(isopropyl acrylate), which is a secondary ester, becomes discernible at 260°C and proceeds in two stages. The other four polymers, which are all primary esters, are more stable. They degrade in a single-stage process starting at 300°C. The principal volatile products from the primary esters are carbon dioxide and the olefin and alcohol corresponding to the alkyl group. A roughly equivalent quantity of short-chain fragments is also formed. From poly(isopropyl acrylate), carbon dioxide and propylene are the only volatile products in the first phase of the reaction.
650	1	4	_aACRYLATES
700	1	2	_aGrassie, N.
700	1	2	_aSpeakman, J. G.
856	4	0	_uhttps://drive.google.com/file/d/1Ty-3lFxZfnHp-8WX7GnWBbxl9Gx-JWgQ/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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