Qualitative and quantitative analysis of a thermoset polymer, poly(benzoxazine), by pyrolysis-gas chromatography.
J Chromatogr A
; 886(1-2): 217-24, 2000 Jul 21.
Article
em En
| MEDLINE
| ID: mdl-10950289
ABSTRACT
The chemical composition of a poly(benzoxazine) thermoset polymer (a copolymer of bisphenol-A benzoxazine and tert.-butylphenol benzoxazine) has been studied by pyrolysis-gas chromatography (Py-GC). Major pyrolysates have been identified and the possible degradation pathways have been investigated. A specific pyrolysate was identified for quantitative analysis after carefully proving the linear relationship between the pyrolysate signal intensity and monomer concentration over a wide range of compositions. A method to determine the concentration of the monomer that potentially acts as a cross-linking unit has been developed. In this study, Py-GC was shown to be an excellent analytical technique for the qualitative and quantitative analysis of thermoset polymers.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Oxazinas
/
Polímeros
/
Cromatografia Gasosa-Espectrometria de Massas
Tipo de estudo:
Qualitative_research
Idioma:
En
Ano de publicação:
2000
Tipo de documento:
Article