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Anthracene derivatives as novel initiators for anionic and cationic polymerizations

✍ Scribed by Thomas Bartz; Markus Klapper; Klaus Müllen

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
506 KB
Volume
195
Category
Article
ISSN
1022-1352

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✦ Synopsis

Abstract

Anionic polymerizations with an anthracene‐derived initiator are described as giving rise to polymers containing only one chromophore on each chain. The approach taken herein involves the deprotonation of dihydroanthracene (1) and the initiation of methyl methacrylate, vinylpyridine and styrene polymerization by the corresponding monohydromonoanion 2. Polymer‐analogous aromatization of the initiator generates a polymer end‐capped with an anthracene chromophore. Anthracene‐containing initiators are used also in the ring‐opening cationic polymerization of 2‐phenyl‐2‐oxazoline (3). The anthracene‐labelled polymers poly(methyl methacrylate) (4a), polyvinylpyridine (5a), polystyrene (6a) and polyphenyloxazoline (7) are examined by gelpermeation chromatography (GPC), ultraviolet (UV) and NMR measurements. The coupling of two anthracene‐labelled polymers via the [4π + 4π] cycloaddition between the terminal anthracene moieties is described.

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