水——有机体系下合成了部分羧甲基纤维素。在规定的温度下考查了催化剂NaOH和醚化剂一氯乙酸以及时间、体系含水量对取代度影响。并用IR,x—射线衍射仪、DSC对产物结构和性能怍了表征, Part of carboxymethylcellulose was synthesized under water-organic system. Under the specified temperature, the effects of catalyst NaOH and etherifying agent monochloroacetic acid and time and system water content on the degree of substitution were investigated. The structure and properties of the product were characterized by IR, x-ray diffraction and DSC.