Abstract
Crystallization behaviour of bisphenol A polycarbonate (PC) from amorphous phase was studied by varing solvent/nonsolvent ratios in liquid phase. Chloroform and isopropanol were used as a solvent and a nonsolvent, respectively. Samples were characterized by optical microphotography, scanning electron microscope (SEM), X-ray diffaction (XRD), and differencial scanning calorimeter (DSC). DSC and XRD measurement were used to determine the crystallinity of PC. The solubility constant seems to critical to control the PC crystallinity in solvent/nonsolvent mixture. The difference in PC crystallinity is explained by the difference in solubility constant of the mixture depending on the solvent/nonsolvent ratio. PC solution of 75/25 wt% (solvent/nonsolvent) ratio produced PC powder showing maximum crystallinity. At this condition solubility constant (9.85) of the mixed solvent was close to PC (9.9).
| Original language | English |
|---|---|
| Pages (from-to) | 811-817 |
| Number of pages | 7 |
| Journal | Polymer (Korea) |
| Volume | 25 |
| Issue number | 6 |
| Publication status | Published - 2001 Dec 1 |
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All Science Journal Classification (ASJC) codes
- Chemical Engineering(all)
- Polymers and Plastics
- Materials Chemistry
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Solvent induced crystallization of polycarbonate in mixed solvent. / Hwang, D. K.; Lee, C. Y.; Shul, Y. G.
In: Polymer (Korea), Vol. 25, No. 6, 01.12.2001, p. 811-817.Research output: Contribution to journal › Article
TY - JOUR
T1 - Solvent induced crystallization of polycarbonate in mixed solvent
AU - Hwang, D. K.
AU - Lee, C. Y.
AU - Shul, Y. G.
PY - 2001/12/1
Y1 - 2001/12/1
N2 - Crystallization behaviour of bisphenol A polycarbonate (PC) from amorphous phase was studied by varing solvent/nonsolvent ratios in liquid phase. Chloroform and isopropanol were used as a solvent and a nonsolvent, respectively. Samples were characterized by optical microphotography, scanning electron microscope (SEM), X-ray diffaction (XRD), and differencial scanning calorimeter (DSC). DSC and XRD measurement were used to determine the crystallinity of PC. The solubility constant seems to critical to control the PC crystallinity in solvent/nonsolvent mixture. The difference in PC crystallinity is explained by the difference in solubility constant of the mixture depending on the solvent/nonsolvent ratio. PC solution of 75/25 wt% (solvent/nonsolvent) ratio produced PC powder showing maximum crystallinity. At this condition solubility constant (9.85) of the mixed solvent was close to PC (9.9).
AB - Crystallization behaviour of bisphenol A polycarbonate (PC) from amorphous phase was studied by varing solvent/nonsolvent ratios in liquid phase. Chloroform and isopropanol were used as a solvent and a nonsolvent, respectively. Samples were characterized by optical microphotography, scanning electron microscope (SEM), X-ray diffaction (XRD), and differencial scanning calorimeter (DSC). DSC and XRD measurement were used to determine the crystallinity of PC. The solubility constant seems to critical to control the PC crystallinity in solvent/nonsolvent mixture. The difference in PC crystallinity is explained by the difference in solubility constant of the mixture depending on the solvent/nonsolvent ratio. PC solution of 75/25 wt% (solvent/nonsolvent) ratio produced PC powder showing maximum crystallinity. At this condition solubility constant (9.85) of the mixed solvent was close to PC (9.9).
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UR - http://www.scopus.com/inward/citedby.url?scp=23444462527&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:23444462527
VL - 25
SP - 811
EP - 817
JO - Polymer (Korea)
JF - Polymer (Korea)
SN - 0379-153X
IS - 6
ER -