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Updated: Oct 1, 2025

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals
Published on: May 29, 2018
Crystallization of polylactides examined by vibrational circular dichroism of intra- and inter-chain chiral
Yi-Kuan Chao1, N M Praveena2,3, Kai-Chieh Yang1
1Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, Republic of China. kaichieh1020@gmail.com.
Abstract:
Herein, vibrational circular dichroism (VCD) measurements were carried out to study the kinetics of cold-crystallized poly(D-lactide) (PDLA) at the molecular level via qualitative analysis. The amplification of the VCD signals from intra- and inter-chain chiral interactions suggests the formation of partially ordered PDLA, followed by heterogeneous nucleation for crystallization. These results were further supported by differential scanning calorimetry (DSC), wide-angle X-ray diffraction (WAXD) and Fourier transform infrared (FTIR) spectroscopy analyses.
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