Recently, we synthesized a series of high molecular weight poly-chromophore polymers by incorporation flexible chains (alkyl and tetraethylene glycol) with oligomeric bis(2-ethylhexyl)-p-phenylenevinylene (BEH-PPV) chromophores of different conjugation length (trimer, pentamer and septamer). We found that the photophysics and single-polymer chain morphology were considerably influenced by the conjugation length of the constituent oligomers. In this contribution, we have investigated the role of side-chain composition and regioregularity on the order of polymer nanostructures. We detail our synthetic strategies to prepare regioregular (1-3  ) and regiorandom (2-methoxy-5-(2-ethylhexyl)-1,4-phenylenevinylene) oligomers (MEH-PPV) as well as BEH-PPV oligomers with hydrogen bonding components such as carboxylic acid and urea functionalities (4-6  ). We also describe our new synthetic strategies to polymerize the hydrogen-bonding oligomers into poly-chromophore structures.

Engineering polymer self-assembly via sidechain modification

247th National Meeting (2014)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.