| 摘要 |
<p>PURPOSE: Provided is a bifunctional phenylene ether oligomer having excellent electric characteristics and toughness, improved compatibility with a different resin and moldability. A thermosetting resin obtained from the above oligomer is also provided. CONSTITUTION: The bifunctional phenylene ether oligomer of the formula H£O-Y|a(O-X-)£Y-O|bH is obtained by oxidation polymerization of a bivalent phenol of the formula HO-X-OH and a monovalent phenol of the formula Y-OH, in which -X- is represented by the formula (2') and Y-O- is represented by the formula (3'): wherein R2, R3, R4, R8 and R9 may be the same or different and are a halogen atom, an alkyl group having 6 or less carbon atoms or a phenyl group; R5, R6 and R7 may be the same or different and are a hydrogen atom, a halogen atom, an alkyl group having 6 or less carbon atoms or a phenyl group; R10 and R11 may be the same or different and are a halogen atom or an alkyl group having 6 or less carbon atoms or a phenyl group; and R12 and R13 may be the same or different and are a hydrogen atom, a halogen atom, an alkyl group having 6 or less carbon atoms or a phenyl group, provided that Y-O- is an arrangement of one kind of structure defined by the formula (3') or a random arrangement of at least two kinds of structures defined by the formula (3'), and each of a and b is an integer of 0 to 300, provided that at least either a or b is not 0, R2, R3, R4, R8, R9, R10 and R11 in the formula (2') and the formula (3') are required not to be a hydrogen atom.</p> |
