Bifunctional phenylene ether oligomer, its derivatives, its use and process for the production thereof

摘要

A bifunctional phenylene ether oligomer of the formula (1), obtained by oxidation polymerization of a bivalent phenol of the formula (2) and a monovalent phenol of the formula (3), wherein -X- is represented by the formula (2'), and Y-O- is represented by the formula (3), R2, R3, R4, R8, R9, R10 and R11 in the formula (2') and the formula (3') being required not to be a hydrogen atom, and its use.