H-NMR Spectroscopy Analysis of Homo- and Copolymers of L-lactic Acid

H-NMR Spectroscopy Analysis of Homo- and Copolymers of L-lactic Acid

Year:    2009

Journal of Fiber Bioengineering and Informatics, Vol. 2 (2009), Iss. 2 : pp. 137–140

Abstract

A direct polymerization process was developed to synthesize homo- and copolymers of L-lactic acid. The properties and structures of the products were characterized by ¹H nuclear magnetic resonance (¹H-NMR). It was found that PLLA can be prepared by direct synthesis using melt polycondensation. Moreover, the number-average molecular weight (\overline{Mn}) and compositions of each polymer was determined by ¹H-NMR spectra. In the meantime, the ¹H-NMR spectra was also used for racemization analysis..

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.3993/jfbi092009

Journal of Fiber Bioengineering and Informatics, Vol. 2 (2009), Iss. 2 : pp. 137–140

Published online:    2009-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    4

Keywords:    Poly(lactic acid)