Construction and molecular understanding of an unprecedented, reversibly thermochromic bis-polydiacetylene

Songyi Lee, Joonseong Lee, Minji Lee, Yu Kyung Cho, Junwoo Baek, Jinwook Kim, Sungnam Park, Myung Hwa Kim, Rakwoo Chang, Juyoung Yoon

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

A new type of bis-PDA, in which two PDAs are linked via an intervening p-phenylene group, is developed. The Bis-PDA-Ph displays exceptional thermochromic reversibility owing to the presence of unique hydrophobic interactions between alkyl chains as well as aryl moieties. The Bis-PDA-Ph has a well-packed structure that causes it to display a clear blue to red colorimetric transition at elevated temperatures. To elucidate the molecular origin of the thermochromic response, a theoretical simulation of the new PDA, the results of which successfully explain the thermochromic reversibility phenomenon, is conducted. Furthermore, Bis-PDA-Ph-embedded polymer fibers are used as a thermochromic sensor material. It displays excellent reversibility between 20-120 °C, which is the largest temperature range reported thus far for PDA based sensors. Finally, transient absorption spectroscopy is employed for the first time to analyze the temperature-dependent fluorescence change of the new PDA. The Bis-PDA-Ph (two PDAs are linked via an intervening p-phenylene group) displays exceptional thermochromic reversibility with a blue to red colorimetric transition at elevated temperatures. To elucidate the molecular origin of the thermochromic response, a theoretical simulation of the new PDA which explains the reversibility phenomenon, is conducted. Furthermore, Bis-PDA-Ph-embedded fibers display excellent reversibility between 20-120 °C.

Original languageEnglish
Pages (from-to)3699-3705
Number of pages7
JournalAdvanced Functional Materials
Volume24
Issue number24
DOIs
Publication statusPublished - 2014 Jun 25

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Personal digital assistants
fibers
temperature
sensors
absorption spectroscopy
simulation
polydiacetylene
fluorescence
causes
polymers
Temperature
Fibers
Sensors
Absorption spectroscopy
interactions
Polymers
Fluorescence
Display devices

ASJC Scopus subject areas

  • Biomaterials
  • Electrochemistry
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Construction and molecular understanding of an unprecedented, reversibly thermochromic bis-polydiacetylene. / Lee, Songyi; Lee, Joonseong; Lee, Minji; Cho, Yu Kyung; Baek, Junwoo; Kim, Jinwook; Park, Sungnam; Kim, Myung Hwa; Chang, Rakwoo; Yoon, Juyoung.

In: Advanced Functional Materials, Vol. 24, No. 24, 25.06.2014, p. 3699-3705.

Research output: Contribution to journalArticle

Lee, S, Lee, J, Lee, M, Cho, YK, Baek, J, Kim, J, Park, S, Kim, MH, Chang, R & Yoon, J 2014, 'Construction and molecular understanding of an unprecedented, reversibly thermochromic bis-polydiacetylene', Advanced Functional Materials, vol. 24, no. 24, pp. 3699-3705. https://doi.org/10.1002/adfm.201304147
Lee, Songyi ; Lee, Joonseong ; Lee, Minji ; Cho, Yu Kyung ; Baek, Junwoo ; Kim, Jinwook ; Park, Sungnam ; Kim, Myung Hwa ; Chang, Rakwoo ; Yoon, Juyoung. / Construction and molecular understanding of an unprecedented, reversibly thermochromic bis-polydiacetylene. In: Advanced Functional Materials. 2014 ; Vol. 24, No. 24. pp. 3699-3705.
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