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Volume 2, Issue 2
H-NMR Spectroscopy Analysis of Homo- and Copolymers of L-lactic Acid

Ping Lan & Wei Wang

DOI: 10.3993/jfbi092009

Journal of Fiber Bioengineering & Informatics, 2 (2009), pp. 137-140.

Published online: 2009-02

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  • 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..
  • Keywords

Poly(lactic acid) ¹H nuclear magnetic resonance number-average molecular weight racemization

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@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} }
TY - JOUR T1 - H-NMR Spectroscopy Analysis of Homo- and Copolymers of L-lactic Acid JO - Journal of Fiber Bioengineering and Informatics VL - 2 SP - 137 EP - 140 PY - 2009 DA - 2009/02 SN - 2 DO - http://doi.org/10.3993/jfbi092009 UR - https://global-sci.org/intro/article_detail/jfbi/4996.html KW - Poly(lactic acid) KW - ¹H nuclear magnetic resonance KW - number-average molecular weight KW - racemization AB - 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..
Ping Lan & Wei Wang. (2019). H-NMR Spectroscopy Analysis of Homo- and Copolymers of L-lactic Acid. Journal of Fiber Bioengineering and Informatics. 2 (2). 137-140. doi:10.3993/jfbi092009
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