Lower critical solution temperature (LCST) polymer solution for clear/cloud glazing applications

Abstract
An aqueous‐based clear/cloud solution was developed using poly(vinyl methyl ether) and an antifreeze mixture of ethylene and propylene glycols. The solution has a controllable cloud point from 15 to 90°C, freeze protection to −46°C, and a density that prevents the precipitated polymer from settling and is fairly stable to UV degradation. A significantly smaller heat gain is achieved through the clear/cloud glazing when compared to a normal double‐pane window. © 1994 John Wiley & Sons, Inc.

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