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Polymerization of 2‐Substituted 2‐Oxazolines Induced by Photocationic Initiators
Author(s) -
Rusa Mariana,
David Geta,
Simionescu Bogdan C.,
Couve Joël,
Abadie Marc J. M.
Publication year - 2001
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/1521-3927(20010301)22:5<372::aid-marc372>3.0.co;2-c
Subject(s) - hexafluorophosphate , oxazoline , chemistry , polymerization , sulfide , benzene , polymer chemistry , salt (chemistry) , polymer , organic chemistry , catalysis , ionic liquid
2‐Ethyl‐2‐oxazoline (EOZO) was polymerized using two different photocationic initiators: a combination of bis{(4‐diphenylsulfonium)phenyl}sulfide bis{hexafluoroantimonate} and (4‐phenyl sulfide)phenyl diphenylsulfonium hexafluoroantimonate (Cyracure UVI® 6974) and ( η 5 ‐2,4‐cyclopentadien‐1‐yl)‐[ η 6 ‐(1‐methylethyl)benzene]iron hexafluorophosphate (Irgacure® 261). The experimental data is consistent with the premise that in the presence of Cyracure UVI® 6974 the initiation proceeds via a Brønstedt acid. In the second case the generation of oxazolinium growing species is intermediated by a complex derived from the initial ferrocenium salt.