| 主权项 |
1. A copolycarbonate comprising 10 to 90 mol % of a unit (A) represented by the following formula (A) and 90 to 10 mol % of a unit (B) represented by the following formula (B) and having terminals satisfying the following expressions (i) and (ii), wherein each of R1 to R4 is independently a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, wherein each of R5 and R6 is independently a halogen atom or a hydrocarbon group having 1 to 10 carbon atoms, the hydrocarbon group may contain an aromatic group, each of m and n is independently an integer of 0 to 4, and W is a group selected from the following formulae, wherein each of R9 and R10 is independently a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, an alkyl group having 1 to 9 carbon atoms, an alkoxy group having 1 to 5 carbon atoms or an aryl group having 6 to 12 carbon atoms
0.0001<(a)/(d)<0.1 (i)0.02<(b)/(d)<0.8 (ii) wherein (a) is an amount of terminal group represented by the following formula, in which R1 to R4 are as defined in the unit (A), (b) is an amount of terminal group represented by the following formula,in which R5, R6, m, n and W are as defined in the unit (B),
(d) is a total terminal group amount and a total amount of (a), (b) and (c), and a formula (c) is a terminal group represented by the following formula |
