In the present invention disclosed are high-molecular-weight, soluble, thermoplastic branched polycarbonates endowed with improved properties, and suitable to blow-moulding fabrication..
Such polycarbonates are characterized by the presence, in their structure, of units deriving from the following double-ring aromatic compounds:
wherein R₁ indicates H, -COCl, -SO₂Cl; R₂, R₃ and R₄, equal to or different from each other, indicate -COCl or SO₂Cl.
The above-said compounds are directly used in the syntheses.
本发明所公开的是高分子量、可溶性、热塑性支链聚
碳酸酯,具有更好的性能,适于吹塑成型制造。
这种聚
碳酸酯的特点是在其结构中存在由下列双环芳香族化合物衍生的单元:
其中 R₁表示 H、-COCl、-SO₂Cl;R₂、R₃和 R₄彼此相同或不同,表示-COCl 或 SO₂Cl。
上述化合物可直接用于合成。