Thermogravimetric Analysis of Poly(ester-carbonate)s and Poly (ester-thiocarbonate)s with the Ester Group in the Side Chain
Titel:
Thermogravimetric Analysis of Poly(ester-carbonate)s and Poly (ester-thiocarbonate)s with the Ester Group in the Side Chain
Auteur:
Tagle, L. H. Diaz, F. R.
Verschenen in:
International journal of polymeric materials
Paginering:
Jaargang 40 (1998) nr. 1-2 pagina's 17-27
Jaar:
1998-04-01
Inhoud:
Thermogravimetric analysis of poly (ester-carbonate)s and poly (ester-thiocarbonate)s with the ester group in the side chain, and derived from the diphenols: methyl and ethyl 2,2-bis (4-hydroxyphenyl)-propanoate, methyl and ethyl 3,3-bis (4-hydroxyphenyl)-butanoate, methyl and ethyl 4,4-bis (4-hydroxyphenyl)-pentanoate with phosgene or thiophosgene, were carried out by dynamic thermogravimetry. The thermal decomposition temperatures were determined, showing that polymers derived from the diphenols methyl and ethyl 2,2-bis (4-hydroxyphenyl)-propanoate were more stable than the others. The kinetic parameters, activation energy, reaction order and pre-exponential factor, were determined using the Arrhenius relationship.
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