Abstract
AbstractA method is presented for the synthesis of monodisperse carboxylated polystyrene (3) and derivatives by a Friedel‐Crafts acylation of monodisperse polystyrene with ethyl oxalyl chloride (1). Saponification of the resulting α‐keto ester yields the randomly carboxylated copolymer, whose structure was confirmed by NMR and infrared spectra. Viscosity measurements and gel permeation chromatography showed that no chain cleavage operated during the process of functionalization. The value of the technique lies in its simplicity of execution and the availability of starting materials.
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