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Gao Y, Qiu H, Zhou H, et al. Crystallization-driven solution self-assembly of block copolymers with a photocleavable junction. J Am Chem Soc. 2015;137(6):2203-6doi: 10.1021/ja512968b.
Gao, Y., Qiu, H., Zhou, H., Li, X., Harniman, R., Winnik, M. A., & Manners, I. (2015). Crystallization-driven solution self-assembly of block copolymers with a photocleavable junction. Journal of the American Chemical Society, 137(6), 2203-6. https://doi.org/10.1021/ja512968b
Gao, Yang, et al. "Crystallization-driven solution self-assembly of block copolymers with a photocleavable junction." Journal of the American Chemical Society vol. 137,6 (2015): 2203-6. doi: https://doi.org/10.1021/ja512968b
Gao Y, Qiu H, Zhou H, Li X, Harniman R, Winnik MA, Manners I. Crystallization-driven solution self-assembly of block copolymers with a photocleavable junction. J Am Chem Soc. 2015 Feb 18;137(6):2203-6. doi: 10.1021/ja512968b. Epub 2015 Feb 05. PMID: 25654217.
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J Am Chem Soc. 2015 Feb 18;137(6):2203-6. doi: 10.1021/ja512968b. Epub 2015 Feb 05.

Crystallization-driven solution self-assembly of block copolymers with a photocleavable junction.

Journal of the American Chemical Society

Yang Gao, Huibin Qiu, Hang Zhou, Xiaoyu Li, Robert Harniman, Mitchell A Winnik, Ian Manners

Affiliations

  1. School of Chemistry, University of Bristol , Bristol BS8 1TS, United Kingdom.

PMID: 25654217 DOI: 10.1021/ja512968b

Abstract

Light-responsive block copolymers have been prepared with a crystallizable core-forming poly(ferrocenyldimethylsilane) (PFS) block, a corona-forming segment of poly(2-vinylpyridine) (P2VP), and a photocleavable o-nitrobenzyl (ONB) junction. These PFS-ONB-P2VP materials form monodisperse cylindrical micelles by living crystallization-driven self-assembly in a selective solvent for P2VP. The P2VP coronas were readily removed by photocleavage at the ONB linker, leading to PFS cylinders with a residual percentage of corona chains dependent on the photoirradiation time. Addition of PFS block copolymer unimers to a solution of the cylinders with ca. 10% residual coronal chains led to the formation of branched rather than linear micelles. The synthetic utility of the PFS-ONB-P2VP materials was further demonstrated by the preparation of nearly monodisperse P2VP nanotubes of tunable length using a strategy that also involved corona cross-linking.

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