Thermochromism of poly(di-n-hexylsilane) in solution revisited

Authors
Bukalov, SS Leites, LA West, R
Citation
Ss. Bukalov et al., Thermochromism of poly(di-n-hexylsilane) in solution revisited, MACROMOLEC, 34(17), 2001, pp. 6003-6004
Citations number
14
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULES
ISSN journal
00249297 → ACNP
Volume
34
Issue
17
Year of publication
2001
Pages
6003 - 6004
Database
ISI
SICI code
0024-9297(20010814)34:17<6003:TOPISR>2.0.ZU;2-6
Abstract
Solutions of poly(di-n-hexylsilane) in hexane, after aging for 5 days, exhi bit on cooling two long-wavelength absorption bands at 357 and 368 nm, in a ddition to the normal high-temperature band at 320 nm. These UV absorptions probably represent different conformations of the polymer chain and so pro vide evidence for the simultaneous presence in solution of three different conformational forms. This is the first time such an observation has been m ade for a polysilanes and perhaps for any polymer.