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Photoinitiated cationic oligomerization of aryl 1-propenyl ethers

✍ Scribed by James V. Crivello; Shengqian Kong

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 178 KB
Volume: 37
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(19990801)37:15<3017::aid-pola35>3.0.co;2-1

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✦ Synopsis

A series of aryl 1-propenyl ethers (ArPE) were prepared by the isomerization of the corresponding allyl aryl ethers (AArE) and used for photoinduced cationic polymerization studies. Attempted polymerization reactions using diaryliodonium salts as photoinitiators generally resulted in low yields of oligomers. Further studies revealed that these compounds have much lower reactivity in cationic vinyl polymerization as compared to their alkyl analogues. Moreover, side reactions resulting from chain transfer due to Friedel-Crafts alkylations take place and compete with vinyl polymerization. These side reactions are responsible for the low molecular weights observed in the cationic photopolymerization of aryl 1-propenyl ether monomers.

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