Influence of solubility parameter difference between monomer and porogen on structures of poly (acrylonitrile-styrene-divinylbenzene) resins
writer：Yuanbo Cai, Wu Yan, Xuesong Peng, Mei Liang, Lin Yu, Huawei Zou*
keywords：-
source：期刊
specific source：Journal of Applied Polymer Science, 2018,136(3)
Issue time：2018年
ABSTRACT: In this work, the acrylonitrile (AN)-styrene (St)-divinylbenzene (DVB) resin was synthesized via suspension polymerization in the presence of inert porogens as diluent. The relationship of the solubility parameter (SP) of the materials and the porous properties of the resin was investigated. These porous spherical resin particles (0.25–0.84 mm) can be used as precursors of amidoxime resin which has a high metal ion chelating efficiency. The results showed that the porous properties (surface area and mean pore width) of the resin changed with variation in the compatibility between monomers and porogens. According to the the BET theory to N2 sorption and scanning electron microscopy (SEM), the specific surface area of the obtained beads was strongly dependent on the compatibility of the components of the system and achieved values from 3.3 to 66.8 m2/g. The surface area of the terpolymer beads was found to rise with a decrease in the content of acrylonitrile or an increase in the SP of the porogens. However, the variation of the pore size was just the opposite.