Multiple switching photochrornic poly (N-isopropylacrylamide) with spironaphthoxazine hydrogel

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

来源：Dyes and Pigments, 2008, 78(1): 8-14.

DOI：10.1016/j.dyepig.2007.10.001

• multi-switching
• photochromic
• spironaphthoxazine
• hydrogel
• copolymer
• poly(N-isopropylacrylamide)

Radical polymerization was used to synthesize a multiple switching photochromic poly(N-isopropylacrylamide) with spironaphthoxazine hydrogel (PNIPA-SPO), which undergoes thermally controlled, reversible switching from solution phase to gel phase at the lower critical solution temperature. The internal microstructure of the PNIPA-SPO hydrogel with a fibrous, three-dimensional structure was investigated by SEM. A complicated multiple switch in PNIPA-SPO hydrogel was realized by light, thermal and proton stimulation, which makes its application promising in the fields of opto- and electronic smart materials, logic gate, nanomachines, sensors and other molecular photonic devices.

• 出版日期2008
• 单位岭南师范学院