期刊
POLYMERS
卷 13, 期 17, 页码 -出版社
MDPI
DOI: 10.3390/polym13172906
关键词
sensor; polymer-dispersed liquid crystal (PDLC); organic solvent
资金
- Ministry of Science and Technology (MOST) in Taiwan [MOST 109-2112-M-040-001-MY2, MOST 110-2112-M-029-005]
By patterning PDLC films with a combination of tri-functional monomers and LCs, an organic solvent sensor was created to distinguish between acetone and ethanol based on different responses in light scattering intensity and response time.
An organic solvent sensor of polymer-dispersed liquid crystals (PDLCs) film is fabricated by a combination of tri-functional monomers and LCs. When the patterned PDLC film comes into contact with the organic solvent, the organic solvent will penetrate into the film to induce the orientation of the liquid crystals, which will change from an ordered to a disordered state, which causes the PDLC film to scatter incident light. The experiment used acetone and ethanol as the organic solvents of interest. The results show that the patterned PDLC film has a stronger response to acetone than to ethanol. Based on the difference in the intensity of light scattering and the response time of the patterned PDLC film to different organic solvents, the results can be used to identify and recognize different types of organic solvents.
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