申请人:GENERAL ELECTRIC COMPANY
公开号:EP0355435A2
公开(公告)日:1990-02-28
An aromatic polycarbonate containing at least one terminal group represented by the formula
wherein R and R′ are the same or different and are alkyl, aryl or halogen; a and b are the same or different and are zero or an integer of one to four; W is 0, S, SO, SO₂, CH₂, CHR or CR₂ wherein R is identified above;
X = O,
―O, arylO, or
arylO.
Preferably a and b are the same or different and are zero or one, more preferably each is zero. W is CH₂, CHR or CR₂.
一种芳香族聚碳酸酯,含有至少一个由式表示的末端基团
其中 R 和 R′相同或不同,且为烷基、芳基或卤素;a 和 b 相同或不同,且为零或一至四的整数;W 为 0、S、SO、SO₂、CH₂、CHR 或 CR₂,其中 R 如上所述;
X = O、
-O、芳基 O 或
芳基 O。
最好 a 和 b 相同或不同,且为零或一,更优选各自为零。W 是 CH₂、CHR 或 CR₂。