VIBRATIONAL DYNAMICS OF POLY(L-GLUTAMIC ACID) (BETA(2) FORM)

Citation
S. Srivastava et al., VIBRATIONAL DYNAMICS OF POLY(L-GLUTAMIC ACID) (BETA(2) FORM), Polymer Journal, 29(6), 1997, pp. 492-499
Citations number
31
Categorie Soggetti
Polymer Sciences
Journal title
ISSN journal
00323896
Volume
29
Issue
6
Year of publication
1997
Pages
492 - 499
Database
ISI
SICI code
0032-3896(1997)29:6<492:VDOPA(>2.0.ZU;2-E
Abstract
The dispersion curves for beta(2) sheet form of poly(L-glutamic acid) (PLG) are reported along with full normal coordinate analysis. Several earlier assignments have been revised. Characteristic features of the dispersion curves, such as repulsion, exchange of character etc., are discussed. Separate contributions to the heat capacity due to purely skeletal, pure side chain, and mix-modes have also been calculated via density-of-states. It is found that the maximum contribution comes fr om the mixed modes and minimum from the pure backbone modes.