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Ice nucleation and supercooling behavior of polymer aqueous solutions.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Kimizuka, Norihito Viriyarattanasak, Chotika Suzuki, Toru |
| Copyright Year | 2008 |
| Abstract | We determined the homogeneous nucleation temperature depression, DeltaT(f,hom), the equilibrium melting point depression, DeltaT(m), and the value lambda, which can be obtained from the linear relationship DeltaT(f,hom)=lambdaDeltaT(m), for aqueous solutions of PEG (200-20,000 g mol(-1)), PVP (10,000, 35,000, 40,000 g mol(-1)), and dextran (10,000 g mol(-1)) in the concentration range 0-40 wt% using the emulsion method. The molecular weight dependence of T(f,hom), T(m), and lambda in PEG aqueous solutions was found to change in the vicinity of Mw 600-1540 at all concentrations. In addition, it was confirmed that for all of the polymers studied, there was a good linear relationship between lambda and the logarithmic value of the self-diffusion coefficient D(0) of the solute molecule. These results indicate that the parameters that describe non-equilibrium freezing, such as T(f,hom) and lambda, are dependent on solution properties such as viscosity and self-diffusion of solute molecules. |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.cryobiol.2007.10.179 |
| PubMed reference number | 18166169 |
| Journal | Medline |
| Volume Number | 56 |
| Issue Number | 1 |
| Alternate Webpage(s) | http://www2.kaiyodai.ac.jp/~mwat/websuzuki/images/lab/50.lab.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/j.cryobiol.2007.10.179 |
| Journal | Cryobiology |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
