Thiophene monomers and oligomers

Due to the high oxidation potential of thiophene monomers, PT films deposited on the electrode are subjected to irreversible over-oxidation during the electropolymerization process, which in turn has a detrimental effect on the quality and the conducting properties of the related films. Consequently, the use 

Improvements of the electropolymerization process can be achieved by substitution at the -position of the thiophene ring with various electron-donating substituents. Some examples of modifications of the thiophene ring are presented below. 

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In this chapter we will first discuss the synthesis, chemistry and physical properties of silicon-containing thiophene monomers, oligomers and polymers. We will first summarize the synthesis of silylated thiophene derivatives. The use of selective silylation reactions allows the design of thiophene monomers and oligomers with various structural features. Some of the properties of these new conjugated structures will be discussed. 

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