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Issue 39, 2020
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A new application of Krafft point concept: an ultraviolet-shielded surfactant switchable window

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Abstract

We report thermo-responsive gels of polyacrylamide (PAAm) with ionic surfactants in mixed water and ethylene glycol (W–EG) solvents as smart windows to solubilize ultraviolet absorbents for UV shielding materials. The Krafft point (TK) of the ionic surfactants determines the phase transition that switches the transparency and opacity of the gels. The TK can be flexibly tuned within a wide temperature range (6–75 °C) with high predictability by changing the surfactant or adjusting the ratio of W–EG solvents.

Graphical abstract: A new application of Krafft point concept: an ultraviolet-shielded surfactant switchable window

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Article information


Submitted
05 Mar 2020
Accepted
02 Apr 2020
First published
03 Apr 2020

Chem. Commun., 2020,56, 5315-5318
Article type
Communication

A new application of Krafft point concept: an ultraviolet-shielded surfactant switchable window

Y. Liu, Y. Guo, Z. Zhang, Z. Huang, P. Qi, J. Cui, A. Song and J. Hao, Chem. Commun., 2020, 56, 5315
DOI: 10.1039/D0CC01727B

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