CONFORMATIONAL AND PACKING ENERGY OF THE CRYSTALLINE ALPHA-MODIFICATION OF SYNDIOTACTIC POLYSTYRENE

Authors
CORRADINI P DEROSA C GUERRA G NAPOLITANO R PETRACCONE V PIROZZI B
Citation
P. Corradini et al., CONFORMATIONAL AND PACKING ENERGY OF THE CRYSTALLINE ALPHA-MODIFICATION OF SYNDIOTACTIC POLYSTYRENE, European Polymer Journal, 30(10), 1994, pp. 1173-1177
Citations number
8
Categorie Soggetti
Polymer Sciences
Journal title
European Polymer Journal → ACNP
ISSN journal
00143057
Volume
30
Issue
10
Year of publication
1994
Pages
1173 - 1177
Database
ISI
SICI code
0014-3057(1994)30:10<1173:CAPEOT>2.0.ZU;2-8
Abstract
Conformational and packing energy calculations have been performed on the alpha modification of syndiotactic polystyrene. The conformational energy has been optimized as a function of the internal parameters of the chain. The packing energy has been calculated considering at firs t the best packing of chains in triplets and then the best packing of triplets in the space groups R3BAR and P3BAR. The comparison of the re sults of the energy calculations with the X-ray experimental data corr oborates a rhombohedral mode of packing of the triplets, corresponding to the space group R3BAR.