A maleimide copolymer comprising maleimide monomer units, aromatic vinyl monomer units and other vinyl monomer units and having the following characteristics, and a maleimide resin composition comprising the above copolymer and a rubbery graft polymer: I) the content of residual maleimide monomer in the copolymer is 0.1 wt. % or less, and the total content of volatiles other than the maleimide monomer is 0.5 wt. % or less; II) the content of a compound obtained from at least one monomer selected from the group consisting of a maleimide monomer, aromatic vinyl monomers and other vinyl monomers and having a weight-average molecular weight of 200 to 1,000 as determined by gel permeation chromatography is 2-10 wt. %; III) the copolymer has a yellow index of 30 or less; and IV) the copolymer has an intrinsic viscosity of 0.3 to 1.5.
一种马来
酰亚胺共聚物,包括马来
酰亚胺单体单元、芳香族
乙烯基单体单元和其他
乙烯基单体单元,并具有以下特性;以及一种马来
酰亚胺树脂组合物,包括上述共聚物和橡胶接枝聚合物:I) 共聚物中残余马来
酰亚胺单体的含量为 0.1 重量%或更低,马来
酰亚胺单体以外的挥发物总含量为 0.5 重量%或更低II) 由至少一种选自马来
酰亚胺单体、芳香族
乙烯基单体和其他
乙烯基单体的单体所制得的化合物的含量为 2-10 重量%,该单体通过凝胶渗透色谱法测定的重量平均分子量为 200 至 1 000;III) 共聚物的黄色指数为 30 或以下;IV) 共聚物的固有粘度为 0.3 至 1.5。