Journal ArticleDOI
Thermochromism and Structural Change in Polydiacetylenes Including Carboxy and 4-Carboxyphenyl Groups as the Intermolecular Hydrogen Bond Linkages in the Side Chain
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TLDR
The polydiacetylenes with no or a phenylene spacer between the main chain and the carboxylic acid moiety were revealed to exhibit a thermal resistance for maintaining reversible thermochromism in a high temperature range, rather than polydiotinylenes with a conventional structure with a flexible alkylene spacer.Abstract:
We investigated the thermochromic behavior of polydiacetylenes including the carboxy and 4-carboxyphenyl groups as the side-chain substituents adjacent to the conjugated main chain, and then, the thermal stability and the thermochromism reversibility of the polymers were related to changes in the polymer conformations monitored by IR and Raman spectroscopies and powder X-ray diffractions. The polydiacetylenes with no or a phenylene spacer between the main chain and the carboxylic acid moiety were revealed to exhibit a thermal resistance for maintaining reversible thermochromism in a high temperature range, rather than polydiacetylenes with a conventional structure with a flexible alkylene spacer. The molecular stacking structures of the diacetylenes and the corresponding polymers in the crystals were discussed based on the results of an X-ray single-crystal structure analysis as well as the powder X-ray diffraction measurements.read more
Citations
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Journal ArticleDOI
Recent Developments in Polydiacetylene-Based Sensors
Xiaomin Qian,Brigitte Städler +1 more
TL;DR: In this article, the authors summarized the latest developments with regard to the applications of PDAs as a class of sensing materials presented in the literature since 2014 and sorted them into categories based on the structural differences of diacetylene monomers from which PDAs are generated.
Journal ArticleDOI
Selecting Two-Dimensional Halogen–Halogen Bonded Self-Assembled 1,3,5-Tris(4-iodophenyl)benzene Porous Nanoarchitectures at the Solid–Liquid Interface
TL;DR: In this paper, a star-shaped 1,3,5-tris(4-iodophenyl)benzene molecule is investigated using scanning tunneling microscopy (STM) at the solid-liquid interface.
Journal ArticleDOI
Low Temperature Thermochromic Polydiacetylenes: Design, Colorimetric Properties, and Nanofiber Formation
In Sung Park,Hyejin Park,Woomin Jeong,Jihye Nam,Youngjong Kang,Kayeong Shin,Hoeil Chung,Jong-Man Kim +7 more
TL;DR: In this article, a series of low temperature colorimetric polydiacetylenes (PDAs) were designed based on the reasoning that removal of the sources for strong headgroup interactions would lower the melting points of the corresponding diacetylene (DA) monomers.
Journal ArticleDOI
A Soluble, Low-Temperature Thermochromic and Chemically Reactive Polydiacetylene
TL;DR: A liquid diacetylene (DA) monomer that solidifies at a temperature near 0 °C is designed and prepared and was able to readily transfer the DA monomer to solid substrates by using common stamping and writing methods used for creating patterned PDA images.
Journal ArticleDOI
Visualization and Quantitative Detection of Friction Force by Self-Organized Organic Layered Composites.
TL;DR: The quantitative detection of friction force is reported from the visible color of organic layered composites consisting of polydiacetylene (PDA) and organic amines without an excitation light source to visualize the strength and accumulated amount of the applied friction force.
References
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Journal ArticleDOI
Color and Chromism of Polydiacetylene Vesicles
Journal ArticleDOI
Fluorogenic polydiacetylene supramolecules: Immobilization, micropatterning, and application to label-free chemosensors
Dong June Ahn,Jong-Man Kim +1 more
TL;DR: The facile immobilization of PDA vesicles on solid substrates and the affinity-induced fluorescence emission combine to make this system applicable to the fabrication of label-free PDA sensors.
Journal ArticleDOI
Biosensors and chemosensors based on the optical responses of polydiacetylenes
TL;DR: This tutorial review highlights the recent advances in bio- and chemo-sensors derived from polydiacetylenes and develops efficient sensory systems based on PDAs.
Book ChapterDOI
Structural aspects of the topochemical polymerization of diacetylenes
TL;DR: In this paper, the present state of knowledge of the topochemical polymerization of diacetylenes is reviewed with regard to structural properties and principles and mechanisms of topochemical reactions are described.