@Article{JFBI-2-137, author = {}, title = {H-NMR Spectroscopy Analysis of Homo- and Copolymers of L-lactic Acid}, journal = {Journal of Fiber Bioengineering and Informatics}, year = {2009}, volume = {2}, number = {2}, pages = {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..}, issn = {2617-8699}, doi = {https://doi.org/10.3993/jfbi092009}, url = {http://global-sci.org/intro/article_detail/jfbi/4996.html} }