Flame-resistant thermoplastic branched polycarbonates of high molecular weight are prepared from:
(1) a carbonate precursor;
(2) at least one dihydroxyaromatic compound of formula:
where:
R is a single bond, or a substituted or non-substituted linear or branched C₁-C₅ alkylene radical, or a group chosen from O, S, SO₂ and CO;
X and Y, which may be the same or different, are H or CH₃;
m and n, which may be the same or different, are whole numbers from 1 to 4;
(3) at least one halogenated triphenolbenzamido compound of formula:
where: Z is a group chosen from CO and SO₂;
R₁ is chlorine or bromine
p is 1 or 2.
高分子量的阻燃热塑性支链聚
碳酸酯由以下物质制备而成:
(1)
碳酸酯前体;
(2) 至少一种式中的二羟基芳香族化合物:
其中
R 是单键,或取代或非取代的直链或支链 C₁-C₅亚烷基,或选 自 O、S、SO₂ 和 CO 的基团;
X 和 Y(可以相同或不同)是 H 或 CH₃;
m 和 n,可以相同,也可以不同,均为 1 至 4 的整数;
(3) 至少一种式中的卤代三
苯酚苯甲酰胺化合物:
其中Z 是选自 CO 和 SO₂ 的基团;
R₁ 是
氯或
溴
p 为 1 或 2。