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Kynaston EL, Fang Y, Manion JG, et al. Patchy Nanofibers from the Thin Film Self-Assembly of a Conjugated Diblock Copolymer. Angew Chem Int Ed Engl. 2017;56(22):6152-6156doi: 10.1002/anie.201700134.
Kynaston, E. L., Fang, Y., Manion, J. G., Obhi, N. K., Howe, J. Y., Perepichka, D. F., & Seferos, D. S. (2017). Patchy Nanofibers from the Thin Film Self-Assembly of a Conjugated Diblock Copolymer. Angewandte Chemie (International ed. in English), 56(22), 6152-6156. https://doi.org/10.1002/anie.201700134
Kynaston, Emily L, et al. "Patchy Nanofibers from the Thin Film Self-Assembly of a Conjugated Diblock Copolymer." Angewandte Chemie (International ed. in English) vol. 56,22 (2017): 6152-6156. doi: https://doi.org/10.1002/anie.201700134
Kynaston EL, Fang Y, Manion JG, Obhi NK, Howe JY, Perepichka DF, Seferos DS. Patchy Nanofibers from the Thin Film Self-Assembly of a Conjugated Diblock Copolymer. Angew Chem Int Ed Engl. 2017 May 22;56(22):6152-6156. doi: 10.1002/anie.201700134. Epub 2017 Feb 16. PMID: 28206692.
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Angew Chem Int Ed Engl. 2017 May 22;56(22):6152-6156. doi: 10.1002/anie.201700134. Epub 2017 Feb 16.

Patchy Nanofibers from the Thin Film Self-Assembly of a Conjugated Diblock Copolymer.

Angewandte Chemie (International ed. in English)

Emily L Kynaston, Yuan Fang, Joseph G Manion, Nimrat K Obhi, Jane Y Howe, Dmitrii F Perepichka, Dwight S Seferos

Affiliations

  1. Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON, M5S 3H6, Canada.
  2. Department of Chemistry and Center for Self-Assembled Chemical Structures, McGill University, 801 Sherbrooke St. West, Montreal, QC, H3A 0B8, Canada.
  3. Department of Chemistry, Division of Molecular Imaging and Photonics, KU Leuven-University of Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium.
  4. Hitachi High-Technologies Canada, Inc., 89 Galaxy Blvd, Suite 14, Toronto, ON, M9W 6A4, Canada.
  5. Department of Materials Science and Engineering, University of Toronto, 184 College St., Toronto, ON, M5S 3E4, Canada.

PMID: 28206692 DOI: 10.1002/anie.201700134

Abstract

An unexpected morphology comprising patchy nanofibers can be accessed from the self-assembly of an all-conjugated, polyselenophene-block-polythiophene copolymer. This morphology consists of very small (<10 nm), polythiophene- and polyselenophene-rich domains and is unprecedented for both conjugated polymers and diblock copolymers in general. We propose that the patchy morphology occurs from the enhanced miscibility of the blocks arising from the longer alkyl chains in comparison to similar block copolymers with shorter alkyl chains, which fully phase separate, as well as the difference in rigidity between the polythiophene and polyselenophene blocks. This work demonstrates a facile way to tune the self-assembly behavior of conjugated block copolymers by modification of the side chain substituents.

© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords: block copolymers; conducting materials; nanostructures; self-assembly; thin films

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