Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/137713
Title: Temperature-directed micellar morphological transformation using CABC-block copolymers and its applications in encapsulation and hidden segment
Authors: Zheng, Jie
Chen, Chen
Goto, Atsushi
Keywords: Science::Chemistry
Issue Date: 2020
Source: Zheng, J., Chen, C., & Goto, A. (2019). Temperature-directed micellar morphological transformation using CABC-block copolymers and its applications in encapsulation and hidden segment. Angewandte Chemie (International edition), 59(5), 1941-1949. doi:10.1002/anie.201913988
Journal: Angewandte Chemie (International edition)
Abstract: A temperature-directed micellar morphological transformation was developed using CABC multi-block copolymers with a hydrophobic block A, a hydrophilic block B, and a thermally responsive block C with a lower critical solution temperature (LCST). The micellar structure was switched from a star (below LCST) to a flower (above LCST). The transition temperature was tunable in a wide range (11-90 °C) by varying the C monomer composition. The large difference in the loading capacity between the star and flower enabled efficient encapsulation and controlled release of external molecules. Unlike conventional systems, the present star-to-flower transformation keeps micellar structures and hence does not liberate polymers but only external molecules selectively. Another application is a hidden functional segment. A functional segment is hidden (shielded) below the LCST and exposed to interact with external molecules or surfaces above the LCST.
URI: https://hdl.handle.net/10356/137713
ISSN: 1433-7851
DOI: 10.1002/anie.201913988
Rights: © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved. This paper was published in Angewandte Chemie (International edition) and is made available with permission of Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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