RAPID CRYSTALLIZATION OF POLYCARBONATE BY SHOCK-COOLING AND FREEZE-DRYING METHOD

Authors
JI GD LI FT ZHU W DAI QP XUE G TU XH
Citation
Gd. Ji et al., RAPID CRYSTALLIZATION OF POLYCARBONATE BY SHOCK-COOLING AND FREEZE-DRYING METHOD, Journal of macromolecular science. Pure and applied chemistry, A34(2), 1997, pp. 369-376
Citations number
11
Categorie Soggetti
Polymer Sciences
Journal title
Journal of macromolecular science. Pure and applied chemistry → ACNP
ISSN journal
10601325
Volume
A34
Issue
2
Year of publication
1997
Pages
369 - 376
Database
ISI
SICI code
1060-1325(1997)A34:2<369:RCOPBS>2.0.ZU;2-V
Abstract
Rapid crystallization of a polycarbonate has been achieved by shock-co oling its very dilute benzene solution and then by sublimation of the solvent under vacuum. The degree of crystallinity of this treated poly carbonate is 42.5% or 46.4% by differential scanning calorimetry (DSC) or wide-angle X-ray diffraction (WAXD) studies respectively. These va lues are significantly higher than that of the sample prepared by hot precipitation technique.