A Spectroscopic Analysis of Chain Flexibility of Poly(lactic acid)
作者： Xiaozhen Yang , Shuhui Kang , Shaw Ling Hsu , Howard D Stidham , Patrick B Smith
DOI: 10.1021/MA001969A
关键词: Chain (algebraic topology) 、 Flexibility (anatomy) 、 Lactic acid 、 Raman spectroscopy 、 Work (thermodynamics) 、 Helix 、 Stereochemistry 、 Chemistry 、 Crystallography 、 Spectral line 、 State model
摘要: A Raman analysis was conducted to examine the disordered structures of poly(lactic acid). Simulated spectra were obtained for an ensemble chains generated by several rotational isomeric state models. Analysis differences between simulated and experimental showed that reported in earlier work leads a chain is much more flexible than data suggest. The suggests dominated tgt conformations 31 helix with characteristic ratio 12, consistent other data.
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