A Facile Route to Synthesize Well-Defined Polybutadiene DendriMacs

✍ Scribed by Solomon M. Kimani; Lian R. Hutchings

• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 151 KB
• Volume: 29
• Category: Article
• ISSN: 1022-1336
• DOI: 10.1002/marc.200700851

✦ Synopsis

Abstract

A facile route to synthesize well‐defined polybutadiene (PBd) DendriMacs is described. In a highly modified approach to that recently published for the synthesis of polystyrene DendriMacs, a G1 polybutadiene (PBd) DendriMac has been synthesized in three simple and high yielding steps. The first step involves the synthesis of a three‐arm PBd mikto arm star in which one arm has a terminal hydroxy group introduced by the use of a protected functionalized initiator. Following fractionation of the star, the hydroxy group is deprotected and converted into an alkyl bromide moiety before coupling the star to a trifunctional core (1,1,1‐tris(4‐hydroxylphenyl)ethane) by a Williamson coupling reaction catalyzed by cesium carbonate to yield a G1 PBd DendriMac.

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