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Synthesis of poly(tert-butoxycarbonyl-p-phenylene): precursor to poly(p-phenylene)

✍ Scribed by Mitsuru Ueda; Masanobu Yoneda

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
327 KB
Volume
16
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

Poly[2‐(tert‐butoxycarbonyl)‐1,4‐phenylene] (2) was prepared by the Ni‐catalyzed polymerization of tert‐butyl 2,5‐dichlorobenzoate (1). The microstructure of polymer 2 was probably alternating head‐to‐head and tail‐to‐tail. This polymer was soluble in dipolar aprotic solvents, chloroform, tetrahydrofuran, and dichloromethane. Polymer 2 was saponified easily by thermal or acid treatment to yield poly[2‐carboxy‐1,4‐phenylene] (3). Decarboxylation of polymer 3 in quinoline in the presence of copper(II) oxide produced poly(p‐phenylene) (PPP) (4).

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