Compositions comprising at least one copolymers comprising: a) from 20 to 90 percent by weight of one or more vinylidene substituted aromatic compounds; b) from 10 to 80 percent by weight of one or more cyclic (meth)acrylate esters; c) from 0 to 40 percent by weight of one or more unsaturated nitriles; and, d) from 0 to 60 percent by weight of an alkyl (meth)acrylate; wherein based on the weight of the copolymer and the copolymer has a weight average molecular weight of 120,000 Kg/Mole or greater and a glass transition temperature of 100 °C or greater. Disclosed are articles prepared from the compositions which may be fabricated in any known manner. The copolymers, compositions and articles disclosed contain reduced levels of the one or more free/residual/unreacted monomers, such as unsaturated nitriles; may be transparent or opaque; or have a biobased monomer content of 5 percent by weight or greater.
由至少一种共聚物组成的组合物,该共聚物包括a) 20-90%(重量)的一种或多种亚
乙烯基取代的芳香族化合物; b) 10-80%(重量)的一种或多种环状(甲基)
丙烯酸酯; c) 0-40%(重量)的一种或多种不饱和腈;以及 d) 0-60%(重量)的烷基(甲基)
丙烯酸酯;其中基于共聚物的重量,共聚物的重量平均分子量为 120,000 公斤/摩尔或更大,
玻璃转化温度为 100℃或更大。本发明还公开了由组合物制备的物品,这些物品可以任何已知的方式制造。所公开的共聚物、组合物和物品含有较少的一种或多种游离/残留/未反应单体,如不饱和腈类;可以是透明或不透明的;或
生物基单体含量大于或等于 5%(重量百分比)。