Ring-opening polymerization in carnosine under pressure

Murli, Chitra ; Mishra, A. K. ; Thomas, Susy ; Sharma, Surinder M. (2012) Ring-opening polymerization in carnosine under pressure The Journal of Physical Chemistry B, 116 (15). pp. 4671-4676. ISSN 1520-6106

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Official URL: http://pubs.acs.org/doi/abs/10.1021/jp300248b

Related URL: http://dx.doi.org/10.1021/jp300248b

Abstract

Our high pressure Raman scattering experiments on carnosine, a dipeptide of l-histidine and β-alanine, show pressure induced ring-opening polymerization involving the imidazole ring. While the onset of polymeric transformation is found to be at ∼2.8 GPa, a substantial fraction of the monomeric solid becomes polymerized by 12 GPa. On release to ambient conditions, the observed Raman spectra do not contain any of the Raman modes of the ambient phase.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society.
ID Code:96532
Deposited On:24 Dec 2012 11:43
Last Modified:24 Dec 2012 11:43

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