Aryl Epoxides as Accelerators for the Photopolymerization of Oxetane Monomers

Epoxides bearing aryl groups function as "kick-starters" to markedly accelerate the photoinitiated cationic ring-opening polymerization of oxetane monomers. Thus, it has been observed that the inclusion of a small amount of styrene oxide transforms a sluggishly polymerizing 3-mono- or 3,3-...

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Bibliographic Details
Published in:	Journal of macromolecular science. Part A, Pure and applied chemistry Vol. 52; no. 5; pp. 336 - 344
Main Author:	Crivello, James V.
Format:	Journal Article
Language:	English
Published:	Taylor & Francis 04-05-2015
Subjects:	Accelerators Aromatic compounds Cationic Cationic photopolymerizations Monomers oxetanes Oxides Polymerization ring-opening polymerizations Styrenes Transforms
Online Access:	Get full text
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Summary:	Epoxides bearing aryl groups function as "kick-starters" to markedly accelerate the photoinitiated cationic ring-opening polymerization of oxetane monomers. Thus, it has been observed that the inclusion of a small amount of styrene oxide transforms a sluggishly polymerizing 3-mono- or 3,3-disubstituted oxetane monomer into one that undergoes rapid, exothermic polymerization. Mechanistic studies suggest that the activity of aryl epoxides as "kick-starters" is related to their ability to intercept photogenerated acids to form benzylic cations that rapidly initiate oxetane monomer polymerization by alkylation of the monomer.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1060-1325 1520-5738
DOI:	10.1080/10601325.2015.1018803