Inhibition of ice nucleation with modified polyvinyl alcohol

11814,564

17/314402

May 07, 2021

Methods, compounds, and compositions for inhibiting ice nucleation are disclosed. A method includes selecting a modified polyvinyl alcohol molecule based on at least one altered hydroxyl distance of the modified polyvinyl alcohol molecule and applying the modified polyvinyl alcohol molecule to water molecules to inhibit ice nucleation when subjected to freezing temperatures.

University of Denver (Denver, CO, US)

University of Denver (Denver, CO, US)

1. A composition comprising as an active ingredient an effective amount of modified polyvinyl alcohol molecules, each modified to alter at least one hydroxyl distance between at least one pair of adjacent hydroxyl groups on a polymer backbone of each polyvinyl alcohol molecule, to inhibit ice nucleation, wherein an average hydroxyl distance between each pair of adjacent hydroxyl groups on the polymer backbone of each of the modified polyvinyl alcohol molecules is greater than ˜2.8 Å and less than ˜7.1 Å, wherein the composition is a liquid antifreeze solution.

2. The composition of claim 1 , wherein the composition comprises a solid medium configured to receive and slowly release the modified polyvinyl alcohol molecules.

3. The composition of claim 2 , wherein the solid medium is a surface coating.

20080036111 February 2008 Sun
20150102210 April 2015 DeLuca
20180050320 February 2018 Verschuur

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