title: Reversible, self cross-linking nanowires from thiol-functionalized polythiophene diblock copolymers.
abstract: Poly(3-hexylthiophene)-block-poly(3-(3-thioacetylpropyl) oxymethylthiophene) (P3HT)-b-(P3TT) diblock copolymers were synthesized and manipulated by solvent-induced crystallization to afford reversibly cross-linked semiconductor nanowires. To cross-link the nanowires, we deprotected the thioacetate groups to thiols and they subsequently oxidized to disulfides. Cross-linked nanowires maintained their structural integrity in solvents that normally dissolve the polymers. These robust nanowires could be reduced to the fully solvated polymer, representing a novel, reversible cross-linking procedure for functional P3HT-based nanowire fibrils. Field-effect transistor measurements were carried out to determine the charge transport properties of these nanostructures.
authors.affiliation: Polymer Science and Engineering Department, University of Massachusetts , Amherst, Massachusetts 01003, United States.
authors.forename: Brenton A G
authors.initials: BA
authors.lastname: Hammer
authors.forename: Marcos A
authors.initials: MA
authors.lastname: Reyes-Martinez
authors.forename: Felicia A
authors.initials: FA
authors.lastname: Bokel
authors.forename: Feng
authors.initials: F
authors.lastname: Liu
authors.forename: Thomas P
authors.initials: TP
authors.lastname: Russell
authors.forename: Ryan C
authors.initials: RC
authors.lastname: Hayward
authors.forename: Alejandro L
authors.initials: AL
authors.lastname: Briseno
authors.forename: Todd
authors.initials: T
authors.lastname: Emrick