A new application of Krafft point concept: an ultraviolet-shielded surfactant switchable window. Issue 39 (13th April 2020)

• Record Type: Journal Article
• Authors: Liu, Yihan; Guo, Yiyi; Zhang, Zhuo; Huang, Zhaohui; Qi, Ping; Cui, Jiwei; Song, Aixin; Hao, Jingcheng
• Is Part Of: Chemical communications. Volume 56:Issue 39(2020)
• Page Start: 5315
• Page End: 5318
• Publication Date: 2020-04-13
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d0cc01727b
• Languages: English
• ISSNs: 1359-7345

Abstract

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. 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 ( T K ) of the ionic surfactants determines the phase transition that switches the transparency and opacity of the gels. The T K 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.