多孔聚苯乙烯凝胶的研究——相分离条件与多孔结构的关系

本文研究了聚苯乙烯凝胶合成中相分离条件与孔结构的关系,树脂在具有一定可塑性及粘度时,加入不良溶剂,以调节凝胶的多孔结构。

Study of Pourous Polystyrene Gel--The Relationship Between Phase Separation Conditions and Pore Structrue

The present paper describes the investigation of polystyrene gel. The conversion and the distribution curve of gel and sol were measured, during the pore-forming process. It was found that earlier phase separation leads to a decrease in pore volume and strength of the resin. On the basis of this point, we proposed that the nonsolvent was added to adjust the pore volume and pore diameter when the resin became plastic and viscous, and designed a series of experiments.