PHASE-TRANSITION IN CRYSTALLINE POLY(DIET HYLSILANE) DEFREEZING THE CONFORMATIONAL ISOMERISM IN ETHYL SUBSTITUENTS

Authors
LEITES LA BUKALOV SS GERASIMOV MV DUBOVIK II PAPKOV VS
Citation
La. Leites et al., PHASE-TRANSITION IN CRYSTALLINE POLY(DIET HYLSILANE) DEFREEZING THE CONFORMATIONAL ISOMERISM IN ETHYL SUBSTITUENTS, Vysokomolekularnye soedinenia. Seria A, 38(5), 1996, pp. 924-928
Citations number
17
Categorie Soggetti
Polymer Sciences
Journal title
Vysokomolekularnye soedinenia. Seria A → ACNP
ISSN journal
05075475
Volume
38
Issue
5
Year of publication
1996
Pages
924 - 928
Database
ISI
SICI code
0507-5475(1996)38:5<924:PICPHD>2.0.ZU;2-#
Abstract
X-ray diffraction, Raman spectroscopic, and DSC studies revealed a fir st-order phase transition in poly(diethylsilane) at similar to 35 degr ees C. This transition is associated with the disordering and involves an increase in the unit cell volume such that the symmetry of the uni t cell is retained but conformational isomerism in the side ethyl subs tituents appears, whereas the silicon backbone retains the trans confo rmation.