Fabrication of a novel polydiacetylene-based gel system through self-assembly and the stimuli-induced colorimetric responsiveness

Xu, Yangyang; Ding, Zhaofu; Zhu, Haibin; Zhao, Xianjun; Gao, Jiangang

doi:10.1016/j.eurpolymj.2022.111202

Cited by 5 publications

(2 citation statements)

References 36 publications

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“…[28][29][30] The color transition and reversibility of the PDAs can be effectively controlled through modifications of functional head groups, conjugation of the backbone, altering the length of alkyl chains, and stress between PDA layers. [31][32][33][34] Typically, thermochromic characteristics of PC are reversible at ambient temperature, [35] and to the best of our knowledge, very limited studies have been reported on polydiacetylene that show an irreversible thermochromic response at low freezing temperatures. The present study aims to synthesize and investigate the thermochromic properties of functionalized PC with ethylene glycol monomethyl ether (EGME), diethylene glycol monomethyl ether (DGME), and triethylene glycol monomethyl ether (TGME).…”

Section: Introductionmentioning

confidence: 99%

Low-temperature Irreversible Thermochromic Indicator Based on Functional Polydiacetylene for Food Storage Applications

Goyal,

Sharma,

Kumar

2024

Preprint

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Thermochromic materials are of great interest because of their color transition characteristic as a function of temperature, and this property may find potential applications as a temperature indicator. Irreversible thermochromic materials that display color change at low temperatures can be utilized as a temperature indicator to ensure the safety and quality of deep-frozen products during storage and transportation. In this work, we have successfully prepared a novel colorimetric sensor based on a functionalized polydiacetylene dye. In order to achieve thermochromic transition of different temperature ranges, pentacosadiynoic acid (PC) was functionalized with ethylene glycol monomethylether (EGME), diethylene glycol monomethyl ether (DGME) and triethylene glycol monomethyl ether (TGME), resulting the formation of ester head groups. Photopolymerization of the synthesized diacetylene dyes was carried out to convert the monomers of the dyes into polymers. The Fourier transform infrared spectroscopy (FTIR), Nuclear magnetic resonance (NMR), and Raman spectroscopy were used to characterize the synthesized product. The absorption spectroscopy and optical images study revealed that the functionalized dyes underwent irreversible thermochromic transition when exposed to freezing temperatures. This property of irreversible color transition can make them a reliable indicator of temperature change. The functional dye was incorporated into a polymer film to apply directly on deep freeze products as a polymer strip and when the temperature increases upon freezing level, the color of the thermochromic strip changes which can provide a visual warning to the consumers and manufacturers.

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Section: Introductionmentioning

confidence: 99%

Low-temperature Irreversible Thermochromic Indicator Based on Functional Polydiacetylene for Food Storage Applications

Goyal,

Sharma,

Kumar

2024

Preprint

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“…8 Moreover, PDAs undergo remarkable colorimetric transformation from blue to red under external stimuli, due to the conformational change of backbone structure from planar to nonplanar. 9 Since Charych et al 10 first reported the application of sialic acid-modified PDA as the selective sensor for influenza virus, PDA-based sensors with colorimetric transition feature induced by stimuli such as solvent, [11][12][13] heat, [14][15][16] pH, 17,18 mechanical stress, [19][20][21] light, 22 metal ions, 23,24 and biomolecules 25,26 have been explored as versatile chemical/biological sensing materials. 27,28 In most cases, PDA-based sensors serviced in solid phase.…”

Section: Introductionmentioning

confidence: 99%

Stimuli‐responsive colorimetric polydiacetylene sensor in polar organic solvent

Ma,

Hu,

Jiang

et al. 2023

J of Applied Polymer Sci

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Polydiacetylene (PDA) has been actively employed as sensing vehicles owing to its unique colorimetric feature upon environmental stimulation. Here, blue phase PDA has been constructed by topological polymerization of commercial diacetylene acid (DA) noncovalently modified by guest amines. Specifically, PDA including 1‐naphthylmethylamine noncovalently bonded on both sides exhibits long‐term stability in polar organic solvents. The stability of PDA depended upon both the structures of the DA and the guest molecule, underscoring a stabilizing mechanism dominated by noncovalent bonding and strong π–π interaction. Accordingly, the blue phase PDA shows a colorimetric response from blue to red upon exposure to stimuli influencing noncovalent bonding and π–π interaction, such as elevated temperature, the existence of acid or alkali at concentrations as low as 50 ppm. Therefore, the PDA developed in this study has the potential of serving as a colorimetric sensor for detecting subtle environment changes and especially for measuring the quality of polar organic solvents recovered from industrial effluent.

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Synthesis of low-temperature irreversible thermochromic indicator based on functional polydiacetylene for food storage applications

Goyal,

Sharma,

Kumar

2024

J Mater Sci

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Fabrication of a novel polydiacetylene-based gel system through self-assembly and the stimuli-induced colorimetric responsiveness

Cited by 5 publications

References 36 publications

Low-temperature Irreversible Thermochromic Indicator Based on Functional Polydiacetylene for Food Storage Applications

Low-temperature Irreversible Thermochromic Indicator Based on Functional Polydiacetylene for Food Storage Applications

Stimuli‐responsive colorimetric polydiacetylene sensor in polar organic solvent

Synthesis of low-temperature irreversible thermochromic indicator based on functional polydiacetylene for food storage applications

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