| 主权项 |
1. A copolycarbonate comprising a unit (A) constituted of an ether diol residue represented by the following formula (1), a unit (B) constituted of a bisphenol residue represented by the following formula (2), and a unit (C) constituted of another diol residue, wherein
(I) the unit (C) is at least one diol residue selected from the group consisting of aliphatic diol residue, alicylic diol residue, oxylene glycol residue and diol residue having a cyclic ether structure,
wherein the aliphatic diol residue is at least one diol residue selected from the group consisting of ethylenediol residue, 1,3-propanediol residue, 1,4-butanediol residue, 1,5-pentanediol residue, 1,6-hexanediol residue, 1,8-octanediol residue and 1,10-decanediol residue,wherein the alicylic diol residue is at least one diol residue selected from the group consisting of cyclohexanedimethanol residue, tricyclodecanedimethanol residue, pentacyclopentadecanedimethanol residue and adamantanedimethanol residue,wherein the oxylene glycol residue is at least one diol residue selected from the group consisting of diethylene glycol, triethylene glycol, tetraethylene glycol and polyethylene glycol, andwherein the diol residue having a cyclic ether structure is at least one diol residue selected from the group consisting of spiroglycol and dioxane glycol; (II) the content of the unit (A) is 40 to 92 mol %, the content of the unit (B) is 5 to 57 mol %, and the content of the unit (C) is 3 to 55 mol % based on the total number of moles of the units (A), (B) and (C); and (III) the ratio of terminal groups falls within the ranges of the following expressions (i) and (ii):
(i) 0.001<total number of hydroxyl groups derived from the unit (A) and the unit (C)/total number of all terminal groups <0.2(ii) 0.02<the number of phenolic hydroxyl groups derived from the unit (B)/total number of all terminal groups <0.6, wherein, in the above expressions, the total number of all terminal groups is the total number of the hydroxyl group of the ether diol, the phenolic hydroxyl group, the hydroxyl group of the aliphatic diol, the hydroxyl group of the alicyclic diol, the hydroxyl group of oxylene glycol, the hydroxyl group of the cyclic ether diol and all phenyl carbonate terminals, wherein, in the above formula (2), R1 and R2 are each independently at least one group selected from the group consisting of hydrogen atom, halogen atom, alkyl group having 1 to 10 carbon atoms, alkoxy group having 1 to 10 carbon atoms, cycloalkyl group having 6 to 20 carbon atoms, cycloalkoxy group having 6 to 20 carbon atoms, alkenyl group having 2 to 10 carbon atoms, aryl group having 6 to 10 carbon atoms, aryloxy group having 6 to 10 carbon atoms, aralkyl group having 7 to 20 carbon atoms, aralkyloxy group having 7 to 20 carbon atoms, nitro group, aldehyde group, cyano group and carboxyl group, when there are two or more R1's and R2's, they may be the same or different, “a” and “b” are each an integer of 1 to 4, and W is at least one bond selected from the group consisting of a single bond and bonds represented by the following formulas (3): wherein, in the above formulas (3), R3, R4, R5, R6, R7 , R8, R9 and R10 are each independently at least one group selected from the group consisting of hydrogen atom, alkyl group having 1 to 10 carbon atoms, aryl group having 6 to 10 carbon atoms and aralkyl group having 7 to 20 carbon atoms, when there are two or more R3's, R4's, R5's, R6's, R7's, R8's, R9's and R10's, they may be the same or different, R11, R12, R13 and R14 are each independently at least one group selected from the group consisting of alkyl group having 1 to 10 carbon atoms, cycloalkyl group having 6 to 20 carbon atoms, alkenyl group having 2 to 10 carbon atoms, aryl group having 6 to 10 carbon atoms and aralkyl group having 7 to 20 carbon atoms, when there are two or more R11's, R12's, R13's and R14's, they may be the same or different, “c” is an integer of 1 to 10, “d” is an integer of 4 to 7, “e” is an integer of 1 to 3, and “f” is an integer of 1 to 100. |
