A process for the preparation of a thermoplastic polymer on the basis of an alkenyl-aromatic monomer and an unsaturated dicarboxylic acid comprises the addition of 0,001-0,01 wt.% of an acid during polymerization. Suitable acids that can be applied are carboxylic acids, and sulphur- and/or phosphorus-containing acids or their mixtures.
以烯芳香族单体和不饱和二
羧酸为基础制备热塑性聚合物的工艺包括在聚合过程中加入 0.001-0.01 wt.%的酸。适用的酸有
羧酸、含
硫和/或
磷的酸或它们的混合物。