Nucleation rates of ice in undercooled water and aqueous solutions of polyethylene glycol

Richard W Michelmore; Felix Franks

doi:10.1016/0011-2240(82)90137-7

Nucleation rates of ice in undercooled water and aqueous solutions of polyethylene glycol

Richard W Michelmore, Felix Franks

Research output: Contribution to journal › Article › peer-review

57 Scopus citations

Abstract

Differential calorimetry has been employed in two different instrumental modes to measure ice nucleation rates in undercooled water and aqueous solutions of polyethylene glycol (PEG) as a function of temperature. The results are consistent with the classical theory of homogeneous nucleation kinetics. It appears that the inhibition of ice nucleation by PEG results mainly from a marked perturbation of the diffusional freedom of water molecules by the polymer.

Original language	English (US)
Pages (from-to)	163-171
Number of pages	9
Journal	Cryobiology
Volume	19
Issue number	2
DOIs	https://doi.org/10.1016/0011-2240(82)90137-7
State	Published - 1982
Externally published	Yes

ASJC Scopus subject areas

Agricultural and Biological Sciences(all)

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abstract = "Differential calorimetry has been employed in two different instrumental modes to measure ice nucleation rates in undercooled water and aqueous solutions of polyethylene glycol (PEG) as a function of temperature. The results are consistent with the classical theory of homogeneous nucleation kinetics. It appears that the inhibition of ice nucleation by PEG results mainly from a marked perturbation of the diffusional freedom of water molecules by the polymer.",

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AB - Differential calorimetry has been employed in two different instrumental modes to measure ice nucleation rates in undercooled water and aqueous solutions of polyethylene glycol (PEG) as a function of temperature. The results are consistent with the classical theory of homogeneous nucleation kinetics. It appears that the inhibition of ice nucleation by PEG results mainly from a marked perturbation of the diffusional freedom of water molecules by the polymer.

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