Add time:07/30/2019 Source:sciencedirect.com
Polyethers are subject to oxidative degradation. An examination of the possible degradation mechanisms suggests a protective substitution, which has been shown to be effective on short chain polyglycols. Inserting a methylene group at the end of triethylene and tripropylene glycols, between the hydroxyl and ether groups, has a stabilising effect on their degradation in air. At 70 °C, degradation is completely stopped in modified triethylene glycol, while modified tripropylene glycol shows diminished degradation.
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