| 摘要 |
A polycarbonate containing one or more end-capping groups of formula (II) wherein A is an aliphatic hydrocarbon group or a group containing one or three aromatic or heteroaromatic rings to which the oxygens or carboxyl groups are directly linked, with the proviso that A does not contain a heteroatom outside the aromatic rig(s), n is 0 or 1, n' is 0 or 1, n'' is 0 or 1, provided that n' is 0 when n'' is 1, Y is a hydrocarbon group or a group of formula (VI) wherein E in each occurrence independently is O, R2Si or R2Si-O, R in each occurrence independently is H or C1-6-alkyl, m in each occurrence independently is 0, 1, 2, 3, or 4, p is from 1 to 50 and q is 0 or 1. |
