| 摘要 |
A silicon-containing copolymer is disclosed which has a number average molecular weight of 500-100,000 and which contains the following structural units (I)-(III): <IMAGE> (I) <IMAGE> (II) <IMAGE> (III) wherein R1, R2, R4, R5, R6 and R7 each represent an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group, an aralkyl group, an alkylamino group or an alkylsilyl group and and R3 and R8 each represent a divalent aromatic group. The copolymer is produced by reacting an organodihalosilane, a disilyl compound, a diamine and ammonia with each other.
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