Photoisomerization kinetics of a novel photoswitchable film based on methyl red doped with sodium hexachloroplatinate hosted in polyethylene oxide. Issue 25 (30th March 2022)

• Record Type: Journal Article
• Authors: Al‐Bataineh, Qais M.; Telfah, Ahmad; Ahlmann, Norman; Tolstik, Elen; Tavares, Carlos J.; Hergenröder, Roland
• Is Part Of: Journal of applied polymer science. Volume 139:Issue 25(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-03-30
• Subjects: complex composite films -- methyl red (MR) -- photoisomerization processes -- polyethylene oxide (PEO) -- sodium hexachloroplatinate (Na2PtCl6); Polymers -- Periodicals; Polymerization -- Periodicals; 668.9
• DOI: 10.1002/app.52387
• Languages: English
• ISSNs: 0021-8995

Abstract

Abstract: This work proposes a novel dopant material to improve the energy storage in azo molecules. Organometallic material with platinum base atom (sodium hexachloroplatinate (IV) (Na2 PtCl6 )) was used as a dopant material in polyethylene oxide‐methyl red (PEO‐MR) films. The photoisomerization kinetics, the energy storage, and the electrical conductivity distribution of PEO‐(MR‐Na2 PtCl6 ) films are investigated and studied. In addition, the effect of Na2 PtCl6 on the chemical and crystal structure is also premeditated. It can be concluded that adding Na2 PtCl6 to PEO‐MR film improves the energy storage in the azo molecules. Therefore, the addition of Na2 PtCl6 into PEO‐MR films can be proposed for different applications, especially in molecular solar thermal energy storage media. Abstract : Azobenzene and its derivatives can change the chemical group connecting with the aromatic rings to get a new geometry. Azobenzene converts from E‐isomer to Z‐isomer by irradiate to UV light, and returns from Z‐state to E‐state by exposure to blue light or thermal relaxation. The kinetics of photoisomerization process are describing by the four‐level model