| Unusual photopolymerization behavior of amino Acid-derived polydiacetylene supramolecules. | |
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MedLine Citation:
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PMID: 21706558 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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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. |
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Authors:
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Jaewon Yoon; Kamalrul Azlan Bin Azizan; Hyun Oh Yoo; Shuji Okada; Jong-Man Kim |
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Publication Detail:
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Type: Journal Article Date: 2009-04-21 |
Journal Detail:
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Title: Macromolecular rapid communications Volume: 30 ISSN: 1022-1336 ISO Abbreviation: Macromol Rapid Commun Publication Date: 2009 Jun |
Date Detail:
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Created Date: 2011-06-27 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9888239 Medline TA: Macromol Rapid Commun Country: Germany |
Other Details:
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Languages: eng Pagination: 981-5 Citation Subset: - |
Copyright Information:
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Copyright © 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
Affiliation:
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Department of Chemical Engineering, Hanyang University, Seoul 133-791, Korea. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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