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Polymers 2017, 9(9), 396; https://doi.org/10.3390/polym9090396

Micellization of Photo-Responsive Block Copolymers

1
Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Humboldtstraße 10, D-07743 Jena, Germany
2
Jena Center for Soft Matter (JCSM), Friedrich-Schiller-University Jena, Philosophenweg 7, D-07743 Jena, Germany
Both authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 24 July 2017 / Revised: 10 August 2017 / Accepted: 22 August 2017 / Published: 26 August 2017
(This article belongs to the Special Issue Polymer Micelles)
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Abstract

This review focuses on block copolymers featuring different photo-responsive building blocks and self-assembly of such materials in different selective solvents. We have subdivided the specific examples we selected: (1) according to the wavelength at which the irradiation has to be carried out to achieve photo-response; and (2) according to whether irradiation with light of a suitable wavelength leads to reversible or irreversible changes in material properties (e.g., solubility, charge, or polarity). Exemplarily, an irreversible change could be the photo-cleavage of a nitrobenzyl, pyrenyl or coumarinyl ester, whereas the photo-mediated transition between spiropyran and merocyanin form as well as the isomerization of azobenzenes would represent reversible response to light. The examples presented cover applications including drug delivery (controllable release rates), controlled aggregation/disaggregation, sensing, and the preparation of photochromic hybrid materials. View Full-Text
Keywords: block copolymers; photo-responsive; self-assembly; micellization block copolymers; photo-responsive; self-assembly; micellization
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Grimm, O.; Wendler, F.; Schacher, F.H. Micellization of Photo-Responsive Block Copolymers. Polymers 2017, 9, 396.

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