Journal: | Brazilian journal of chemical engineering |
Database: | PERIÓDICA |
System number: | 000308923 |
ISSN: | 0104-6632 |
Authors: | Correa, R.O1 Telles, A.S Ourique, J.E2 |
Institutions: | 1Universidade Federal do Rio de Janeiro, Escola de Quimica, Rio de Janeiro. Brasil 2Universidade Federal do Rio Grande do Norte, Departamento de Engenharia Quimica, Natal, Rio Grande do Norte. Brasil |
Year: | 2004 |
Season: | Dic |
Volumen: | 21 |
Number: | 4 |
Pages: | 621-628 |
Country: | Brasil |
Language: | Inglés |
Document type: | Artículo |
Approach: | Experimental, aplicado |
English abstract | Group contribution methods have been widely used for the estimation and prediction of properties of a great variety of chemical compounds and mixtures of compounds. In this paper, the glass transition temperature of polymers is evaluated by a second-order group contribution method previously developed by Ourique and Silva Telles (1997). From a total of 1018 polymers in the data base, 923 are selected as the training set to which group and interacting group contributions are assigned. The remaining 95 polymers are used as the validation set. Results are compared to the ones obtained by application method of Van Krevelen method's to the same data base |
Disciplines: | Química |
Keyword: | Química de polímeros, Ingeniería química, Vidrio, Temperatura de transición, Método de gráficas estructurales, Estimación de propiedades |
Keyword: | Chemistry, Polymer chemistry, Chemical engineering, Glass, Transition temperature, Graph-structural method, Properties estimation |
Full text: | Texto completo (Ver HTML) |