Micelle-Mediated PbBr₂ Complexation: Influence of Block Copolymer Architecture and Mixing Conditions.

ABSTRACT: Block copolymer micelles mediate PbBr₂ complexation through two distinct pathways: an architecture-dependent interfacial process under static conditions and a shear-dominated mechanism under dynamic mixing. This study reveals how the polystyrene-block-poly(2-vinylpyridine) (PS-b-P2VP) asymmetry governs the chain adsorption conformations (trains, loops, and tails) on PbBr₂ surfaces and its complexation outcome. Under static conditions, the process is kinetically limited by micellar diffusion. Upon reaching the PbBr₂ surface, the strong pyridine-Pb²⁺ coordination induces a restructuring of the micelle core. For asymmetric PS-b-P2VP with long P2VP blocks, a thin PS shell allows the P2VP core to deform and sp

SUBMITTER: Junisu BA 

PROVIDER: S-EPMC12713784 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature