Co-assemblies of polydiacetylenes and metal ions for solvent sensing

We demonstrate an easy and low-cost approach for the colorimetric differentiation of organic solvents using co-assemblies of polydiacetylenes (PDAs) and metal ions. The co-assemblies were prepared by the self-assembly of amphiphilic 10,12-tricosa diynoic acid with different metal ions (Zn2+, Cu2+, N...

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Bibliographic Details
Published inSoft matter Vol. 14; no. 33; pp. 6929 - 6937
Main Authors Wu, Si, Pan, Libin, Huang, Youju, Yang, Ni, Zhang, Qijin
Format Journal Article
LanguageEnglish
Published England Royal Society of Chemistry 2018
Subjects
Acids
Assemblies
Calcium
Calcium ions
Colorimetry
Copper
Ions
Metal ions
Metals
Organic solvents
Photopolymerization
Polydiacetylenes
Self-assembly
Solvents
Zinc
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Summary:We demonstrate an easy and low-cost approach for the colorimetric differentiation of organic solvents using co-assemblies of polydiacetylenes (PDAs) and metal ions. The co-assemblies were prepared by the self-assembly of amphiphilic 10,12-tricosa diynoic acid with different metal ions (Zn2+, Cu2+, Ni2+, Ca2+) and subsequent photopolymerization. Different metal ions underwent different interactions with the carboxyl groups on the side chains of poly(10,12-tricosa diynoic acid), which influenced the stimuli-responsiveness of the PDA/metal ion co-assemblies. As a result, the PDA/metal ion co-assemblies with different metal ions showed different solvatochromism. Based on this property, the co-assemblies were used as sensors to differentiate organic solvents.
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ISSN:1744-683X
1744-6848
DOI:10.1039/c8sm01282b