Confirmation of disorder α form of poly(L-lactic acid) by the X-ray fiber pattern and polarized IR/Raman spectra measured for uniaxially-oriented samples

Jianming Zhang, Kohji Tashiro, Abraham J. Domb, Hideto Tsuji

Research output: Contribution to journalArticlepeer-review

134 Scopus citations

Abstract

In the present research, we report for the first time the X-ray fiber pattern and polarized IR/Raman spectra taken for the uniaxially oriented disorder α form of PLLA, which can confirm the existence of the disorder PLLA α form (α′-form) and provide some new insight on the structural difference between the order and disorder α forms.

Original languageEnglish
Pages (from-to)274-278
Number of pages5
JournalMacromolecular Symposia
Volume242
DOIs
StatePublished - 2006
Externally publishedYes

Bibliographical note

Funding Information:
Dahn for useful discussions. We are particularly grateful to D. Monet for carrying out the parallax fit. This research was performed in part by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. The results presented in this Letter are based in part on data obtained using the NASA-JPL camera at the Oschin Telescope, Palomar Observatory, California Institute of Technology. This publication makes use of data products from 2MASS, which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by the National Aeronautics and Space Administration and the National Science Foundation. SkyMorph is funded by NASA’s Applied Information Systems Program.

Keywords

  • Diorder α form
  • Polarized IR/Raman
  • Poly(L-lactic acid)
  • X-ray fiber diagrams

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