Ion transport in helical-helical polypeptide polymerized ionic liquid block copolymers.

ABSTRACT: Helical-helical polypeptide polymerized ionic liquid block copolymers (PPIL BCPs) are synthesized to investigate the role of helical structure on self-assembly and ionic conductivity. PPIL BCPs, consisting of a cationic polypeptide (PTPLG) with bis(trifluoromethane sulfonimide) (TFSI) counterion and varying lengths connected to a length-fixed neutral poly-(γ-benzyl-_L-glutamate) (PBLG) block, exhibit stable helical conformations with minimal glass transition (T_g) variation. Here, we show that increasing PIL composition leads to a transition from poorly ordered to highly ordered lamellar (LAM) structures with the highest PIL content BCP forming a bilayer LAM structure with close-packed helices. This morphology yields a 1.5 order of magnitude higher T_g- and vo

SUBMITTER: Chen Y 

PROVIDER: S-EPMC11897142 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature