A spectroscopical study of the thermochromic effect of butyl and octyl substituted poly[ (2, 2?-dithiophene)-5,5?-diylvinylene] films (herein 4PDTV and 8PDTV) is reported. The optical absorption spectra shift to higher energies by increasing the temperature. These reversible changes have been monitored by IR absorption and Raman scattering. The measurements do not show a relevant backbone distortion upon heating. This seems an indication that these polymers are more rigid than poly-3-alkylthiophenes.
THERMOCHROMISM OF ALKYL SUBSTITUTED POLY(DITHIOPHENEDIYLVINYLENES)
CATELLANI M;LUZZATI S;
1993
Abstract
A spectroscopical study of the thermochromic effect of butyl and octyl substituted poly[ (2, 2?-dithiophene)-5,5?-diylvinylene] films (herein 4PDTV and 8PDTV) is reported. The optical absorption spectra shift to higher energies by increasing the temperature. These reversible changes have been monitored by IR absorption and Raman scattering. The measurements do not show a relevant backbone distortion upon heating. This seems an indication that these polymers are more rigid than poly-3-alkylthiophenes.File in questo prodotto:
| File | Dimensione | Formato | |
|---|---|---|---|
|
prod_233154-doc_58830.pdf
solo utenti autorizzati
Descrizione: THERMOCHROMISM OF ALKYL SUBSTITUTED POLY(DITHIOPHENEDIYLVINYLENES)
Dimensione
223.9 kB
Formato
Adobe PDF
|
223.9 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
