中文摘要：

分别以离子液体1-烯丙基-3-甲基氯代咪唑（[Amim]C1）与氢氧化钠／尿素水溶液为反应介质，采用丙烯酸单体，过硫酸铵为引发剂，N，N’一亚甲基双丙烯酰胺为交联剂，利用接枝共聚方法合成纤维素．丙烯酸接枝共聚物。以轻液体石蜡为分散相，经反相悬浮过程将接枝物球化，考察了分散剂用量、油水比、转速对成球的影响，确定了较合理的反相悬浮球化条件。采用傅里叶变换红外光谱（FT—IR）、透射电子显微镜（TEM）对纤维素吸附剂进行了表征。探讨了聚合物微球对金属离子的吸附性能。结果表明，聚合物微球对Cu2＋离子有较好的吸附效果，吸附量分别为230．8mg／g（[Amim]C1体系）与241．9mg／g（氢氧化钠／尿素水溶液体系），具有良好的再生能力，且[Amim]Cl体系中制备的吸附剂具有较高的成球得率。

英文摘要：

Acrylic acid was grafted onto cellulose respectively in ionic liquids（ [ Amiml C1） and NaOH/Urea aqueous solution by using ammonium persulfate as an initiator in the pres- ence of N,N＇-methylenebisacrylamide as a crosslinker under graft copolymerization method. The spherical polymer was ob- tained by using light liquid paraffin as the dispersed phase by an inverse suspension polymerization technique. Investigation was conducted on the effect of spherical reaction parameters, such as dispersant dosage,oil/water volume ratio and stirring speed. The structure of the graft copolymer was confirmed by FT-IR,thermogravimetric analyzer. The desorption properties for metal ions of the polymer microspheres were studied. Re- sults indicated that polymer mierosphere is an effective metal ion adsorbent for Cu2＋ and performs well in regeneration. Mo- reover,the microspheres adsorbent preparing in [ Amim ] C1 has a higher yield and a little lower adsorbance than NaOH/ Urea system.