Trimethylsilyl substitution at the a position has been claimed to favour both the chemical and electrochemical polymerisation processes of polythiophenes. When comparing the electro-polymerisation of three related monomers we found that the above is not a general rule: the trimethylsilyl substitution does not always produce the expected results because electronic effects play an intriguing role in directing the reaction. One of the three monomers, 1,2-difluoro-1,2-bis(4-methoxy-2-thienyl)ethene, easily underwent electropolymerisation giving a new low band gap polymer with good electrochromic properties.

A new low band gap dithienylene-fluorovinylene electrochromic polymer: an intriguing effect of silyl substitution on the polymerisation reaction

GALLAZZI, MARIA CARMELA;BERTARELLI, CHIARA;
2002

Abstract

Trimethylsilyl substitution at the a position has been claimed to favour both the chemical and electrochemical polymerisation processes of polythiophenes. When comparing the electro-polymerisation of three related monomers we found that the above is not a general rule: the trimethylsilyl substitution does not always produce the expected results because electronic effects play an intriguing role in directing the reaction. One of the three monomers, 1,2-difluoro-1,2-bis(4-methoxy-2-thienyl)ethene, easily underwent electropolymerisation giving a new low band gap polymer with good electrochromic properties.
File in questo prodotto:
File Dimensione Formato  
06_j_mater_chem_2002.pdf

Accesso riservato

: Altro materiale allegato
Dimensione 220.05 kB
Formato Adobe PDF
220.05 kB Adobe PDF   Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/557743
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact