Phonon dispersion and heat capacity of poly(L-aspartic acid)

Authors
Kapoor, D Misra, NK Tandon, P Gupta, VD
Citation
D. Kapoor et al., Phonon dispersion and heat capacity of poly(L-aspartic acid), EUR POLYM J, 34(12), 1998, pp. 1781-1791
Citations number
29
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
EUROPEAN POLYMER JOURNAL
ISSN journal
00143057 → ACNP
Volume
34
Issue
12
Year of publication
1998
Pages
1781 - 1791
Database
ISI
SICI code
0014-3057(199812)34:12<1781:PDAHCO>2.0.ZU;2-K
Abstract
Normal modes and their dispersion are reported for the cc-helical form of p oly(L-aspartic acid) which is an important polypeptide used in the sustaine d release of drugs. Characteristic features of dispersion curves such as bu nching and repulsion are discussed. Heat capacity is derived from the dispe rsion curves via density-of-states and compared with the available experime ntal data on sodium salt of the polymer. (C) 1998 Elsevier Science Ltd. All rights reserved.