Abstract
Abstract Copolymers of 3-substituted thiophenes have been synthesized by organosynthetic routes. The chemical synthesis of the copolymer was carried out by dehydrogenation of 3-hexylthiophene and 3-methanolthiophene. Attachment of biotin to the resulting copolymer, poly(3-hexylthiophene-co-3-methanolthiophene) [PMHT], is accomplished by room temperature esterification using N,N-dicyclohexylcarbodiimide (DCC) and 4-pyrrolidinopyridine as catalyst. The resulting copolymers have well-defined chemical and electronic structures and molecular weights. The biotinylated copolymer forms a stable monolayer at the air-water interface due to the polar groups along the polymer backbone.
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