Bistable photoswitching in poly(N-isopropylacrylamide) with spironaphthoxazine hydrogel for optical data storage

作者：Wang Sheng; Choi Myung Shik; Kim Sung Hoon^*

来源：Journal of Photochemistry and Photobiology A: Chemistry , 2008, 198(2-3): 150-155.

DOI：10.1016/j.jphotochem.2008.03.002

• photoswitching
• photochromic
• spironaphthoxazine
• hydrogel
• poly(N-isopropylacrylamide)

A bistable switching photochromic poly(N-isopropylacrylamide) with spironaphthoxazine hydrogel copolymer (PNIPA-SPO-BIS) has been designed and synthesized by radical polymerization. The PNIPA-SPO-BIS copolymer is identified by H-1 NMR spectroscopy, FIT-IR spectroscopy and gel permeation chromatography (GPC). The morphology of the internal microstructures of the PNIPA-SPO-BIS hydrogels was observed by scanning electron microscopy (SEM). The PNIPA-SPO-BIS copolymer showed excellent photochromic behavior in water solution and in gel state. In addition, erasable and rewritable (EARW) photo-imaging on the PNIPA-SPO-BIS hydrogel was successfully demonstrated. A novel optical data storage materials based on photochromic hydrogel was developed. These developments are crucial for fundamental studies and eventual technical application for all-photo mode high-density optical data storage.

• 出版日期2008-8-15
• 单位岭南师范学院