首页> 外国专利> PROCESS FOR PREPARING MONODISPERSE POLYSTYRENE BEADS BY PRECIPITATION POLYMERIZATION

PROCESS FOR PREPARING MONODISPERSE POLYSTYRENE BEADS BY PRECIPITATION POLYMERIZATION

机译:沉淀聚合制备单分散聚苯乙烯链的方法

摘要

A process for preparing monodisperse polystyrene beads is provided to perform smooth precipitation polymerization at a lower temperature compared with a conventional process, and to ensure uniform average particle diameter and stabilized spherical shape. A process for preparing cross-linked polystyrene beads comprises a step of mixing a styrene monomer, cross-linking agent and polymerization initiator in a reaction solvent and performing precipitation polymerization to prepare polystyrene beads. The polymerization initiator is a mixed initiator containing persulfate-based initiator and 2,2-azobis(2,4-dimethylvaleronitrile) initiator in a weight ratio of 1 : 5~11.
机译:提供了一种制备单分散聚苯乙烯珠的方法,以与常规方法相比在较低的温度下进行平稳的沉淀聚合,并确保均匀的平均粒径和稳定的球形。制备交联聚苯乙烯珠粒的方法包括以下步骤:将苯乙烯单体,交联剂和聚合引发剂在反应溶剂中混合,并进行沉淀聚合以制备聚苯乙烯珠粒。聚合引发剂是包含过硫酸盐类引发剂和2:2-偶氮双(2,4-二甲基戊腈)引发剂的重量比为1:5〜11的混合引发剂。

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