Thermodynamics of the synthesis of polynaphthoylene benzimidazole in the 0–330 K range

Autor:	N. G. Matvelashvili, T.G Kulagina, B.V. Lebedev, I. I. Ponomarev, A. L. Rusanov, Ye.G. Kiparisova
Rok vydání:	1990
Předmět:	Benzimidazole Standard enthalpy of reaction Enthalpy General Engineering Thermodynamics Isothermal titration calorimetry Heat capacity Gibbs free energy chemistry.chemical_compound symbols.namesake chemistry symbols Isobaric process Polyimide
Zdroj:	Polymer Science U.S.S.R.. 32:2004-2010
ISSN:	0032-3950
DOI:	10.1016/0032-3950(90)90353-8
Popis:	The thermodynamic properties of 1,4,5,8-naphthalene-tetracarboxylic dianhydride, poly(o-amino) naphthoyleneimide, and polynaphthoylene benzimidazole, i.e. isobaric heat capacity in the 13–330 K range, the enthalpy of combustion of the crystalline ionomer and the glassy polymers, are studied by adiabatic and isothermal calorimetry methods. The enthalpy, entropy, and Gibbs function for the polycondensation of 1,4,5,8-naphthalene-tetracarboxylic dianhydride with 3,3′,4,4′-tetraaminodiphenyl ester and for polyheterocyclization of the poly (o-amino)naphthoylene imide formed into polynaphthoylene benzimidazole are calculated for the 0–330 K range from the data obtained.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::10eacab9af5e9c24d0f866540d5063cd https://doi.org/10.1016/0032-3950(90)90353-8 Zobrazit plný text záznamu