Unusual photopolymerization behavior of amino acid-derived polydiacetylene supramolecules

Jaewon Yoon, Kamalrul Azlan Azizan, Hyun Oh Yoo, Shuji Okada, Jong Man Kim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

UV-irradiation of aqueous suspensions of amino acid-derived amphiphilic diacetylene supramolecules promotes a process that involves initial formation of species that absorb at 640 nm followed by the generation of polymers that have longer wavelength (686 nm) absorbance. The initially formed intermediate polydiacetylenes display substantial colorimetric reversibility while the long wavelength absorbing polymers show irreversible thermochromism during heating and cooling cycles. The long wavelength absorbing polydiacetylenes, formed from amino acid-derived amphiphilic diacetylene supramolecules, are suggested to have more planer backbone structures that allow more efficient overlap of the conjugated p-orbitals.

Original languageEnglish
Pages (from-to)981-985
Number of pages5
JournalMacromolecular Rapid Communications
Volume30
Issue number12
DOIs
Publication statusPublished - 17 Jun 2009
Externally publishedYes

Fingerprint

Photopolymerization
Amino acids
Amino Acids
Wavelength
Polymers
Suspensions
Irradiation
Cooling
Heating
polydiacetylene

Keywords

  • Amino acids
  • Color transition
  • Irradiation
  • Polyacetylenes
  • Unusual polymerization

ASJC Scopus subject areas

  • Organic Chemistry
  • Materials Chemistry
  • Polymers and Plastics

Cite this

Unusual photopolymerization behavior of amino acid-derived polydiacetylene supramolecules. / Yoon, Jaewon; Azizan, Kamalrul Azlan; Yoo, Hyun Oh; Okada, Shuji; Kim, Jong Man.

In: Macromolecular Rapid Communications, Vol. 30, No. 12, 17.06.2009, p. 981-985.

Research output: Contribution to journalArticle

Yoon, Jaewon ; Azizan, Kamalrul Azlan ; Yoo, Hyun Oh ; Okada, Shuji ; Kim, Jong Man. / Unusual photopolymerization behavior of amino acid-derived polydiacetylene supramolecules. In: Macromolecular Rapid Communications. 2009 ; Vol. 30, No. 12. pp. 981-985.
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