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Gas‐sensor fabrication by a layer‐by‐layer technique using polydiacetylene
Author(s) -
Kim Minhee,
Shin Young Jae,
Shin Min Jae,
Shin Jae Sup
Publication year - 2017
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.44997
Subject(s) - sulfonate , layer by layer , materials science , fabrication , styrene , layer (electronics) , amine gas treating , copolymer , butylamine , chemical engineering , sensitivity (control systems) , polymer chemistry , analytical chemistry (journal) , nanotechnology , polymer , sodium , chemistry , composite material , organic chemistry , electronic engineering , medicine , alternative medicine , pathology , engineering , metallurgy
In order to increase the sensitivity of a polydiacetylene (PDA) sensor, PDA, and poly(sodium 4‐styrene‐sulfonate) (PSS) were alternately stacked to form a layer‐by‐layer (LBL) film on the quartz. In this study, N ‐(2‐aminoethyl)pentacosa‐10,12‐diynamide (AEPCDA) was used as a constituent of the PDA and n ‐butylamine was used as a target compound. The formed‐film sensor showed higher sensitivity than the vesicle solution. There was a large difference in sensitivity depending on the method used to form the LBL film. Unlike the vesicle solution state, the formed‐film sensor exhibited excellent reversibility in the color change caused by heat. The LBL film formed worked very well as a sensor that detects the actual gas, n‐butyl amine, showing its potential for practical applications. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 44997.