合成聚乙烯基苯甲酸树脂的研究(Ⅰ)——用氯甲基化交联聚苯乙烯一步法合成  

THE INVESTIGATION OF THE SYNTHESIS OF POLYVINYLBENZOIC ACID RESINS(Ⅰ)——SYNTHESIS FROM THE CHLOROMETHYLATED COPOLYMER OF STYRENE-DIVINYL BENZENE BY DIRECT OXIDATION WITH NITRIC ACID

作　　者：何炳林[1] 萧绍博[1] 陈伟朱 林雪[1] Ho Ping-lum;Xiao Shaobo;Chen Weichu;Lin Xue(Department of Chemistry,Nankai University,Tianjin)

机构地区：[1]南开大学化学系

出　　处：《高等学校化学学报》1983年第5期617-624,共8页Chemical Journal of Chinese Universities

摘　　要：本文用硝酸一步法将大孔氯甲基化交联聚苯乙烯树脂小球(氯球)氧化成聚乙烯基苯甲酸树脂。经红外光谱鉴定,推测了反应的机理。The authors studied the oxidation of macroporous chloromethylated copolymer of styrene-divinylbenzene with nitric acid to macroporous copolymer of vinylbenzoic acid-divinylbenzene(CVBD);thus the weakly cation exchange resins with capacities of 5.0-5.7meq/g(H)were obtained.The effects of the reaction conditions such as the concentration of nitric acid,the temperature and time,were investigated.The reactions of the chloromethylated styrene-divinylbenzene copolymer with dilute nitric acid in the presence of potassium nitrate and surfactants were also investigated.The infrared spectra of the resins proved the composition of the products;it also indicated that the oxidation of the chloromethylated copolymer of styrene-divinylbenzene with concentrated nitric acid first formed an ester as intermediate,i.e.benzyl nitrate,and then to CVBD.The side reaction,i.e.the cleavage of the main chain of the copolymer,was discussed and the degree of decrosslinking of the resins in the reaction was estimated by means of a plot of the swelling against the weight capacity of the resin.

关 键 词：聚乙烯基 氯甲基化交联聚苯乙烯 苯甲酸 一步法合成 氯球 红外光谱 硝酸 树脂 

分 类 号：TQ3[化学工程]