Effect of ethanol on the color transition of the polydiacetylene vesicle of 10,12‐pentacosadiynoic acid for butylamine detection

Abstract

ABSTRACTIn this study, we estimated the color‐transition behavior of a polydiacetylene (PDA) vesicle system for butylamine detection in an EtOH–water mixed solvent. The effect of the EtOH concentration in the vesicle system on the color transition of PDA was measured. 10,12‐Pentacosadiynoic acid (PCDA) was used to form the PDA vesicle by sonication and photopolymerization. The results show that the vesicle formation of PCDA was accomplished with up to 13 wt % EtOH. As the concentration of EtOH increased from pure water (0 wt %) to 13 wt %, a larger size vesicle was formed, with the color transition occurring at a lower temperature and with a lower amount of butylamine. The color of the PDA vesicle solution started to change at 3 mM butylamine with pure water as the solvent and at 2.5 mM butylamine with 10 wt % EtOH. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47688.