Temperature-directed micellar morphological transformation using CABC-block copolymers and its applications in encapsulation and hidden segment

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...

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Main Authors: Zheng, Jie, Chen, Chen, Goto, Atsushi
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/137713
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1377132023-02-28T19:21:05Z Temperature-directed micellar morphological transformation using CABC-block copolymers and its applications in encapsulation and hidden segment Zheng, Jie Chen, Chen Goto, Atsushi School of Physical and Mathematical Sciences Science::Chemistry Block Copolymers Encapsulation 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. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Accepted version 2020-04-09T06:23:30Z 2020-04-09T06:23:30Z 2020 Journal Article 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 1433-7851 https://hdl.handle.net/10356/137713 10.1002/anie.201913988 31733019 2-s2.0-85076862271 5 59 1941 1949 en Angewandte Chemie (International edition) © 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. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Science::Chemistry
Block Copolymers
Encapsulation
spellingShingle Science::Chemistry
Block Copolymers
Encapsulation
Zheng, Jie
Chen, Chen
Goto, Atsushi
Temperature-directed micellar morphological transformation using CABC-block copolymers and its applications in encapsulation and hidden segment
description 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.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Zheng, Jie
Chen, Chen
Goto, Atsushi
format Article
author Zheng, Jie
Chen, Chen
Goto, Atsushi
author_sort Zheng, Jie
title Temperature-directed micellar morphological transformation using CABC-block copolymers and its applications in encapsulation and hidden segment
title_short Temperature-directed micellar morphological transformation using CABC-block copolymers and its applications in encapsulation and hidden segment
title_full Temperature-directed micellar morphological transformation using CABC-block copolymers and its applications in encapsulation and hidden segment
title_fullStr Temperature-directed micellar morphological transformation using CABC-block copolymers and its applications in encapsulation and hidden segment
title_full_unstemmed Temperature-directed micellar morphological transformation using CABC-block copolymers and its applications in encapsulation and hidden segment
title_sort temperature-directed micellar morphological transformation using cabc-block copolymers and its applications in encapsulation and hidden segment
publishDate 2020
url https://hdl.handle.net/10356/137713
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