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 first 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 results of the energy calculations with the X-ray experimental data corroborates a rhombohedral mode of packing of the triplets, corresponding to the space group R3BAR.
Conformational and Packing Energy of the Crystalline Alpha-modification of Syndiotactic Polystyrene / P., Corradini; DE ROSA, Claudio; G., Guerra; R., Napolitano; V., Petraccone; B., Pirozzi. - In: EUROPEAN POLYMER JOURNAL. - ISSN 0014-3057. - STAMPA. - 30:(1994), pp. 1173-1177. [10.1016/0014-3057(94)90255-0]
Conformational and Packing Energy of the Crystalline Alpha-modification of Syndiotactic Polystyrene
DE ROSA, CLAUDIO;
1994
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 first 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 results of the energy calculations with the X-ray experimental data corroborates a rhombohedral mode of packing of the triplets, corresponding to the space group R3BAR.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
