Relative stability between the alpha and gamma forms of even nylons based on group contributions

Authors
Bernado, P Aleman, C Puiggali, J
Citation
P. Bernado et al., Relative stability between the alpha and gamma forms of even nylons based on group contributions, EUR POLYM J, 35(5), 1999, pp. 835-847
Citations number
38
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
EUROPEAN POLYMER JOURNAL
ISSN journal
00143057 → ACNP
Volume
35
Issue
5
Year of publication
1999
Pages
835 - 847
Database
ISI
SICI code
0014-3057(199905)35:5<835:RSBTAA>2.0.ZU;2-M
Abstract
The nature and strength of the intermolecular interactions in the alpha and gamma forms of even nylons have been analyzed using nb initio quantum mech anical calculations. On the basis of such interactions we have developed a simple model based on the additivity of energy group contributions that per mits to predict the relative stability between the alpha and gamma forms fo r even nylons. This model has been applied to nylons 6, 8 and 10 providing excellent results in all cases. (C) 1999 Elsevier Science Ltd. All rights r eserved.