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Random and block 2-alkyl-2-oxazolines telechelic macromonomers

✍ Scribed by Philippe Guinot; Lonnie Bryant; Tak Yuen Chow; Takeo Saegusa

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
626 KB
Volume
197
Category
Article
ISSN
1022-1352

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✦ Synopsis

Ring-opening polymerization of 2-methyl-2-oxazoline initiated by 2-@-nitrobenzenesulfonato)ethyl methacrylate follows the so-called "living mechanism", i. e. fast initiation compared to slow propagation and no chain transfer. Accordingly, methacryl macromonomers having homopolymers, block or random copolymers of 2-methyl and 2-pentyl-2-oxazoline backbones with narrow molecular weight distribution were obtained. Termination of the propagating species by ion-exchange or aminolysis with triethylamine yielded hydroxyl and quaternary ammonium terminated macromonomers, respectively.

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