Radiation-induced colour changes in a spiropyran/BaFCl:Eu2+/polystyrene composite film and nonwoven fabric. (5th September 2016)

• Record Type: Journal Article
• Authors: Tsuchida, Hayato; Nakamura, Ryotaro; Kinashi, Kenji; Sakai, Wataru; Tsutsumi, Naoto; Ozaki, Makoto; Okabe, Takahiro
• Is Part Of: New journal of chemistry. Volume 40:Number 10(2016:Oct.)
• Page Start: 8658
• Page End: 8663
• Publication Date: 2016-09-05
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c6nj01661h
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : A spiropyran dye and BaFCl:Eu 2+ containing polystyrene (PS) film and nonwoven fabric successfully detects X-ray exposure doses in the order of milligray (mGy). Abstract : A polystyrene (PS)-based composite film and nonwoven fabric consisting of a photochromic spiropyran dye, 1, 3, 3-trimethylindolino-6′-nitrobenzopyrylospiran (6-nitro BIPS), and a photostimulable phosphor, europium-doped barium fluorochloride (BaFCl:Eu 2+ ), were developed for the detection of X-ray exposure doses on the order of a milligray (mGy). The PS-based composite film and the nonwoven fabric were successfully prepared according to a cast method and a forcespinning method. The colours of the composite film and the nonwoven fabric were changed from white to deep blue, and a broad absorption band appeared, with a maximum at 604 nm, with X-ray exposures of 0.1 Gy and 5.6 Gy, respectively. The maximum sensitivity of 0.1 Gy of the composite film is equivalent to the radiation dose limit for workers who conduct emergency work.