VIBRATIONAL ANALYSIS OF POLY(L-LACTIC ACID)

Authors
KISTER G CASSANAS G VERT M PAUVERT B TEROL A
Citation
G. Kister et al., VIBRATIONAL ANALYSIS OF POLY(L-LACTIC ACID), Journal of Raman spectroscopy, 26(4), 1995, pp. 307-311
Citations number
25
Categorie Soggetti
Spectroscopy
Journal title
Journal of Raman spectroscopy → ACNP
ISSN journal
03770486
Volume
26
Issue
4
Year of publication
1995
Pages
307 - 311
Database
ISI
SICI code
0377-0486(1995)26:4<307:VAOPA>2.0.ZU;2-Q
Abstract
The Raman and IR spectra of poly(L-lactic acid) in the amorphous and s emicrystalline states were recorded from 3600 to 100 cm(-1). Complete vibrational assignments are proposed. In the Raman spectra, the splitt ings of the nu C=O stretching and the delta CCO bend are characteristi c of the crystalline phase and the presence of the two lines at 923 an d 520 cm(-1) indicates a 10(3) helical conformation.