VIBRATIONAL DYNAMICS AND HEAT-CAPACITY OF BETA-POLY(L-SERINE)

Citation
A. Gupta et al., VIBRATIONAL DYNAMICS AND HEAT-CAPACITY OF BETA-POLY(L-SERINE), Polymer, 38(10), 1997, pp. 2389-2397
Citations number
34
Categorie Soggetti
Polymer Sciences
Journal title
ISSN journal
00323861
Volume
38
Issue
10
Year of publication
1997
Pages
2389 - 2397
Database
ISI
SICI code
0032-3861(1997)38:10<2389:VDAHOB>2.0.ZU;2-8
Abstract
Poly(L-serine) is a poly(amino acid) having a side group (-CH2OH). It is found to exist in an anti-parallel beta sheet structure. A study of complete normal modes and their dispersion has been carried out using Higg's modification of Wilson's GF matrix method and the Urey-Bradley force field. The constants of the field have been best fitted to the Fourier transform infra-red and Raman frequencies. Repulsion and excha nge df character between various pairs of modes have been observed. He at capacity as a function of temperature, obtained from the dispersion curves via density-of-states, is in good agreement with the measureme nts of Roles et al. (Biopolymers, 1993, 33, 753). (C) 1997 Elsevier Sc ience Ltd.