Abstract
It has been reported that the water in aqueous PEG solution freezes at ca. -40°C upon heating from lower temperature, ca. -100°C. Such water is called "Cold-Crystallizable Water (CCW)". In this study, the state of CCW in PEG-DME-water system was examined by FT-IR. The cold-crystallization of both water and PEG-DME was observed at a high cooling rate (120 K/hour) at ca. 223 K upon heating, whereas not at a low cooling rate (30 K/hour). Spectral changes at ca. 223 K where CCW occurs indicate that dimeric water associated with PEG chain crystallizes at that temperature.
| Original language | English |
|---|---|
| Pages | 3255-3256 |
| Number of pages | 2 |
| State | Published - 2005 |
| Event | 54th SPSJ Symposium on Macromolecules - Yamagata, Japan Duration: 2005/09/20 → 2005/09/22 |
Conference
| Conference | 54th SPSJ Symposium on Macromolecules |
|---|---|
| Country/Territory | Japan |
| City | Yamagata |
| Period | 2005/09/20 → 2005/09/22 |
Keywords
- Aqueous polymer solution
- Cold-crystallization
- FT-IR
- Water
ASJC Scopus subject areas
- General Engineering