Imidazole and triazole head group-containing polydiacetylenes for colorimetric monitoring of pH and detecting HCl gas

Woolin Lee, Dayoung Lee, Ji Yeong Kim, Songyi Lee, Juyoung Yoon

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The family of conjugated polymers known as polydiacetylenes (PDAs) has been extensively utilized in designing stimuli-responsive colorimetric and fluorometric sensors. In the current study, we have developed highly sensitive and rapidly responsive colorimetric chemosensors composed of PDAs bearing imidazole (PDA-Im) and triazole (PDA-Ta) head groups for the determination of pH and the detection of HCl gas. In solution, PDA-Im and PDA-Ta display distinct colorimetric changes from blue to red accordingly in response to pH changes. Also, a PDA-Im film was fabricated to detect HCl by a visibly observed blue-to-red color change.

Original languageEnglish
Pages (from-to)291-295
Number of pages5
JournalMaterials Chemistry Frontiers
Volume2
Issue number2
DOIs
StatePublished - 2018

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