Abstract
Oligomers with terminal amino groups can be used in production of various linear and crosslinked polymers. Papers have been published on the preparation of oligomers with terminal amino groups [1–7]. Oligomers with one amino end group have been obtained by initiation of the polymerization of styrene by sodium amide [1]. Oligostyrenediamines have been obtained by initiation of the polymerization of styrene with sodium-naphthalene and treatment of the product with p-bromoaniline or methyl p-aminobenzoate [2]. A polystyrene with terminal amino groups, of molecular weight 20,000, has been obtained in a yield of less than 7% by radical polymerization, in which bis-2- or 4-aminophenyl disulphide were used as chain transfer agents [3].
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