Para-Fluoro/thiol click chemistry-driven pentafluorostyrene-based block copolymer self-assembly: to mimic or not to mimic the solubility parameter?. Issue 33 (10th August 2022)

• Record Type: Journal Article
• Authors: Mandal, Prithwiraj; Marcasuzaa, Pierre; Billon, Laurent
• Is Part Of: Polymer chemistry. Volume 13:Issue 33(2022)
• Page Start: 4757
• Page End: 4762
• Publication Date: 2022-08-10
• Subjects: Polymers -- Periodicals; Macromolecules -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1039/d2py00784c
• Languages: English
• ISSNs: 1759-9954

Abstract

Abstract : This investigation reports the controlled transition from disordered/nano-segregated poly(styrene- b -pentafluorostyrene) (PS- b -PPFS)-based block copolymers after a subsequent para -fluoro/thiol click reaction with different functional thiol agents. Abstract : A block copolymer (BCP) consisting of polystyrene (PS) and polypentafluorostyrene (PPFS) blocks is synthesized by nitroxide mediated polymerization (NMP). Then nucleophilic substitution of the labile para -fluorine atom onto the PPFS platform is performed by an organo-catalyzed reaction at ambient temperature using the para -fluoro/thiol click reaction. It is observed that the effect of the substitute chemical nature induces a drastic tuning of the nano-structuration of the block copolymer. Indeed, the para -fluoro/thiol click reaction leads to PS- b -modified PPFS block copolymers with solubility parameter control and drives an order/disorder transition.