Open AccessPreparation and Properties of Solvent-induced Discoloration Polydiacetylene Sensors
Author(s) -
Hui Wang,
Jiaxin Yu,
Yancheng Li,
Wen He,
Li Han,
Weijuan Gong
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1676/1/012068
Subject(s) - fluorescence , polyvinyl alcohol , solvent , monomer , polymerization , photochemistry , filter paper , materials science , phase (matter) , nuclear chemistry , chemistry , analytical chemistry (journal) , polymer , chromatography , optics , organic chemistry , composite material , physics
Polydiacetylene (PDA) films were prepared from 10, 12-pentacosadiynoic acid monomers by 1, 4-addition polymerization. The PDA sensors had different discoloration properties for different solvents. With the increase of time, the appearance color of the sensor changed from blue to red. The fluorescence properties of the films were studied by fluorescence spectra. There was no fluorescence phenomenon in blue-phase PDA, but there was fluorescence phenomenon in red-phase PDA film. The fluorescence signal peak appeared at 570 nm. In addition, the PDA polyvinyl alcohol (PVA) film and PDA test paper were prepared with PVA and filter paper as substrates, and their properties were studied. The PDA test paper shows a better tendency to change color from blue to red to the solvent, and the discoloration can complete in 1 s.