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Bharat Bhooshan Sharma, Chitra Murli and Surinder M. Sharma Hydrogen bonds and polymerization in acrylamide under pressure Journal of Raman Spectroscopy 44

Version of Record online: 2 MAR 2013 | DOI: 10.1002/jrs.4264

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We report here the in-situ high pressure Raman investigations of acrylamide up to ~17 GPa. Structural transition is observed in the pressure range 1.4–2.6 GPa facilitated by the reconstruction of N-H---O hydrogen bonds and conformational changes. Emergence of several new spectral features at higher pressures indicates onset of polymerization. The characteristic CH2 polymer band is discernible at ~17 GPa, and increase in its relative intensity on release to ambient conditions indicates that higher fraction of polymer is obtained on decompression.

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