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Poly(4-vinylpyridine)-block-poly(N-acryloylpiperidine) diblock copolymers: synthesis, self-assembly and interaction

Hofman, A. H., Alberda van Ekenstein, G., Woortman, A., ten Brinke, G. & Loos, K., 1-Oct-2015, In : Polymer Chemistry. 6, 39, p. 7015-7026 12 p.

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  • Poly(4-vinylpyridine)-block-poly(N-acryloylpiperidine) diblock copolymers

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DOI

Controlled radical polymerization of 4-vinylpyridine (4VP) and N-acryloylpiperidine (API) by the RAFT process allowed preparation of well-defined double hydrogen bond accepting P4VP-b-PAPI diblock copolymers. The miscibility of this new monomer pair was studied via a random copolymer blend approach and resulted in a Flory–Huggins interaction parameter χ4VP,API ≈ 0.03, which is higher than the commonly used styrene/MMA couple, but lower compared to styrene/isoprene. This value was found to support the bulk phase behavior of a series of diblock copolymers as evidenced by SAXS and TEM. Highly ordered structures, including cylinders, lamellae and spheres, were identified in these materials, even in diblocks of higher molecular weight and broader distribution, while a disordered morphology was indeed observed in a symmetric, low molecular weight analogue.
Original languageEnglish
Pages (from-to)7015-7026
Number of pages12
JournalPolymer Chemistry
Volume6
Issue number39
Publication statusPublished - 1-Oct-2015

ID: 24037800