Polycarbonate resins are chain-terminated with a group selected from those of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each independently selected from the group consisting of hydrogen, halogen, hydrocarbyl of from 1 to 12 carbon atoms, inclusive; and halogen-substituted hydrocarbyl of 1 to 12 carbon atoms, inclusive; R.sub.1 is attached to a ring carbon atom at one of the 4, 5 or 6 positions; and R.sub.2 and R.sub.3 when taken together represent the divalent moiety of formula: --CH.dbd.CH.sub.2 --CH.sub.2 .dbd.CH-- which effectively creates an additional fused aromatic ring structure. The resins exhibit a low plate-out when processed thermally.
聚
碳酸酯
树脂的链末端带有来自以下公式所选的基团:##STR1##
其中,R.sub.1,R.sub.2和R.sub.3各自独立地选择自氢,卤素,1至12个碳原子的羟基烃基(包括);和1至12个碳原子的卤代羟基烃基;当R.sub.1附加到4,5或6位置的环碳原子时; R.sub.2和R.sub.3在一起表示公式的二价基团:--CH = CH.sub.2 --CH.sub.2 = CH--,有效地创建了另一个融合的芳香族环结构。这些
树脂在热加工时表现出低的板层现象。