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Cyclic acetals: Synthesis and polymerization

✍ Scribed by František Socha; Ivan Dobáš; Jaromír Šňupárek

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
190 KB
Volume
81
Category
Article
ISSN
0021-8995

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✦ Synopsis

Abstract

Mixtures of 5‐membered and 6‐membered 2‐vinyl (2‐propenyl or 2‐isopropyl)‐4‐hydroxymethylene or 5‐hydroxy‐substituted cyclic acetals were synthesized by the reaction of aldehydes with glycerol. Reesterification of the hydroxyl group in position 4 or 5 was achieved using methyl methacrylate. The compounds were subjected to radical copolymerization using different initiating systems. Both radical copolymerization and ring cleavage were observed to be dependent on the reaction conditions. The ring cleavage was confirmed on model compounds of 2‐substituted 5‐membered and 6‐membered cyclic acetals without any polymerizable substituent. The rate of the ring opening was measured and compared to the rate of copolymerization. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 2875–2880, 2001

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