丙烯酸系单体-苯乙烯共聚物的制备

为制备聚丙烯纤雄改性用的添加剂，考虑在聚苯乙烯上接枝极性官能团。采用了苯乙烯与丙烯酸系单体水相悬浮共聚的方法在其分子链上引入羧酸根。通过控制引发刑的添加量以控制聚合产物相时分子质量及分布，以满足纤维改性的使用。并通过采用傅立叶红外（FTIR）谱图中羰基在波数1740～1720cm^-1处的特征峰和苯环在1600cm^-1处的峰高比对丙烯酸类单体在共聚物中的含量进行测算。结果证实中和度对共聚比的影响较大，丙烯酸和丙烯酸酯类单体的共聚比与投料比接近。

Preparation of Acrylates-styrene Copolymers for Fiber Modification

To get polystyrene with polar groups as fiber modification additives, a series of copolymer of styrene and acrylic type of monomers were copolymerized. With adjustment of initiator dosing, the molecular weight and its distribution can be well controlled for fiber modification. The average component of the copolymers were estimated by the peak height ratios of absorption of CO of carbonyl group and phenyl structure from FTIR.