Controlling swelling in mixed transport polymers through alkyl side-chain physical cross-linking.

ABSTRACT: Semiconducting conjugated polymers bearing glycol side chains can simultaneously transport both electronic and ionic charges with high charge mobilities, making them ideal electrode materials for a range of bioelectronic devices. However, heavily glycolated conjugated polymer films have been observed to swell irreversibly when subjected to an electrochemical bias in an aqueous electrolyte. The excessive swelling can lead to the degradation of their microstructure, and subsequently reduced device performance. An effective strategy to control polymer film swelling is to copolymerize glycolated repeat units with a fraction of monomers bearing alkyl side chains, although the microscopic mechanism that constrains swelling is unknown. Here we investigate, experimentally and computationally, a se

SUBMITTER: Siemons N 

PROVIDER: S-EPMC10467570 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature