Two Organic Phase Suspension Polymerization for Novel Hypercrosslinked Resin Bead by Polycondensation of CMB  

作　　者：赵林秀 张鑫 吕邢鑫 原思国 武现丽 

机构地区：[1]School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, China [2]School of Chemical and Environment Engineering, North University of China, Taiyuan 030051, China

出　　处：《Chinese Journal of Chemical Engineering》2013年第4期447-452,共6页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China （21004055） and the Doctoral Discipline Foundation of Education Ministry （20104101110005）.

摘　　要：The suspension polymerization with two organic phases was adopted to prepare spherical hyper- crosslinked resin by self-polycondensation of 4,4＇-bis-（chloromethyl）- 1, 1＇-biphenyl （CMB）. The chemical structure,morphology and pore characteristics of the novel spherical resin were characterized with Fourier transform infrared spectroscopy （FTIR）, micrograph and Brunauer-Emmett-Teller （BET）. It is found that the suspension system and stirring speed impose a great influence upon the regularity and size distribution of hypercrosslinked beads. To prepare CMB resin beads with diameter of about 300 μm, the optimal condition is as follows： stirring speed 300 r·min^-1, and the volume ratio of the two organic phases （nitrobenzene/dimethyl silicon oil） 1 ： 5. After the self-polycondensation and sqccedent post-crosslinking of CMB monomer, the spherical adsorbent presents high spec^al surface area （1190 m^2· g^-1） and abundant pore^volume （0.714 cm^3· g^-1）, and could be potentially applied qn the adsorption of various organic molecules and synthesis of porous ion exchanger.The suspension polymerization with two organic phases was adopted to prepare spherical hypercrosslinked resin by self-polycondensation of 4,4′-bis-(chloromethyl)-1,1′-biphenyl (CMB). The chemical structure, morphology and pore characteristics of the novel spherical resin were characterized with Fourier transform infrared spectroscopy (FTIR), micrograph and Brunauer-Emmett-Teller (BET). It is found that the suspension system and stirring speed impose a great influence upon the regularity and size distribution of hypercrosslinked beads. To prepare CMB resin beads with diameter of about 300 μm, the optimal condition is as follows: stirring speed 300 r·min-1 , and the volume ratio of the two organic phases (nitrobenzene/dimethyl silicon oil) 1︰5. After the self-polycondensation and succedent post-crosslinking of CMB monomer, the spherical adsorbent presents high special surface area (1190 m2 ·g-1 ) and abundant pore volume (0.714 cm 3 ·g-1 ), and could be potentially applied in the adsorption of various organic molecules and synthesis of porous ion exchanger.

关 键 词：two organic phase suspension polymerization hypercrosslinked resin bis chloromethyl monomer 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业] X703[环境科学与工程—环境工程]