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Heats of combustion of high temperature polymers
Author(s) -
Walters Richard N.,
Hackett Stacey M.,
Lyon Richard E.
Publication year - 2000
Publication title -
fire and materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.482
H-Index - 58
eISSN - 1099-1018
pISSN - 0308-0501
DOI - 10.1002/1099-1018(200009/10)24:5<245::aid-fam744>3.0.co;2-7
Subject(s) - heat of combustion , combustion , standard enthalpy of formation , thermochemistry , calorimetry , oxygen , polymer , heteroatom , chemistry , char , organic chemistry , thermodynamics , inorganic chemistry , ring (chemistry) , physics
The heats of combustion for 49 commercial and developmental polymers of known chemical structure were determined using an oxygen bomb calorimeter according to standard methods. The experimental results were compared with thermochemical calculations of the net heat of combustion from oxygen consumption and the gross heat of combustion from group additivity of the heats of formation of products and reactants. The polymers examined were thermally stable, char forming thermoplastics and thermoset resins containing a significant degree of aromaticity and heteroatoms including — nitrogen, sulphur, phosphorus, silicon, and oxygen in linear and heterocyclic structures. The gross and net heats of combustion calculated from polymer enthalpies of formation and oxygen consumption thermochemistry were within 5% of the experimental values from oxygen bomb calorimetry. The heat released by combustion per gram of diatomic oxygen consumed in the present study was E =13.10±0.78 kJ/gO 2 for polymers tested ( n =48). This value is indistinguishable from the universal value E 13.1 kJ/gO 2 used in oxygen consumption combustion calorimetry. Published in 2000 by John Wiley & Sons Ltd.