Synthèse et caractérisation du α-hydroxy, ω-(4-N,N-diméthylaminophényl) polystyrène

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Abstract
To prepare polymers carrying a donor chromophore at one end and an acceptor chromophore at the other, anionic initiators carrying the 4-N,N-dimethylaminophenyl group were synthesized by two different methods. These polymers were needed for the purpose of studying intramolecular cyclization via observation of exciplex formation. It was established that metal cleavage of appropriately substituted ethers was the most advantageous way to synthesize these functionalized initiators. These compounds proved very reactive toward styrene, yielding quantitatively polymers bearing 4-(N,N-dimethylaminophenyl) groups at one end of the chain. At the other end of the chain, induced deactivation of the "living" sites by means of oxirane created a hydroxy function that could be used in a later step to attach various other groups. Attachment of pyrene to this end would lead to a system in which intramolecular exciplex formation could occur.

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