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为了改进提取甜菊甙(糖)所用的阴离子交换树脂的脱色能力和抗污染能力,作者选用合适的致孔剂进行苯乙烯、二乙烯苯和极性单体的多元悬浮共聚,然后进行氯甲基化和胺化,合成了多种阴离子交换树脂。与D280树脂相对照进行树脂性能测试,筛选出了对甜菊甙脱色容量较大和再生效果较好的E—04树脂。
In order to improve the decolorization ability and anti-pollution ability of anion exchange resin used in the extraction of stevioside (sugar), the author selected the appropriate porogen for the multi-suspension copolymerization of styrene, divinylbenzene and polar monomer, and then chloromethyl Amination and amination, synthesis of a variety of anion exchange resins. Compared with D280 resin, the resin performance was tested, and the E-04 resin with larger decolorizing capacity and better regeneration was screened out.