Time-resolved measurements of FT-IR and Raman spectra and X-ray diffraction have been
performed to trace the structural changes in the solvent-induced crystallization of syndiotactic polystyrene
glass sample. After the exposure of the glassy sample into the atmosphere of such organic solvent as
toluene, benzene, or chloroform, the IR and Raman bands characteristic of the regular helical conformation
of (T2G2)2 type were found to increase the intensities with time. Some time delay was found for the
appearance of the bands with different critical sequence lengths, leading to the concrete description of
the growth of regular helical chain from the random coil. The X-ray scattering intensity began to increase
largely at the timing of the appearance of the IR and Raman bands of long helical sequences, indicating
that the crystal lattice starts to be formed at the timing when the long segments of regular helical form
are gathered together. The rate of this crystallization process depends on the kind of the used solvent.
The factors governing this difference have been discussed.
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