A mild and effective strategy to prepare alkynyl-functionalized cellulose fibers (A-CFs) and azido-functionalized cellulose fibers (N₃-CFs) was presented. Epoxy-cellulose fibers (Epoxy-CFs), graft copolymerization products of cellulose fibers (CFs) and glycidyl methacrylate (GMA), were prepared using cerium ammonium nitrate (CAN) as initiator. Epoxy groups content of Epoxy-CFs could be as high as 2.5 mmol/g. Introduction of alkynyl/azido groups into Epoxy-CFs were achieved through ring-opening reactions of epoxy groups with propargylamine (PgAm) and sodium azide (NaN₃), respectively. Under appropriate conditions, A-CFs with alkynyl groups of 0.57 mmol/g and N₃-CFs with azido groups of 0.35 mmol/g could be obtained. Click reactivities of A-CFs, N₃-CFs and Epoxy-CFs were verified by Cu(I) catalyzed alkyne-azido cycloaddition (CuAAC) and thiol-epoxy click reactions. A-CFs, N₃-CFs, Epoxy-CFs and their clicked products were characterized by attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS).

提出了一种温和有效的制备炔基官能化纤维素纤维（A-CFs）和叠氮基官能化纤维素纤维（N ₃ -CFs）的策略。环氧纤维素纤维（Epoxy-CFs），纤维素纤维（CFs）和甲基丙烯酸缩水甘油酯（GMA）的接枝共聚产物，是使用硝酸铈铵（CAN）作为引发剂制备的。环氧CFs的环氧含量可高达2.5 mmol / g。通过环氧基分别与炔丙基胺（PgAm）和叠氮化钠（NaN ₃）开环反应，将炔基/叠氮基引入环氧-CF中。在适当的条件下，可以获得具有0.57mmol / g的炔基的A-CF和具有叠氮基的0.35mmol / g的N ₃ -CF。A-CF，N _3的点击反应性通过铜（I）催化的炔-叠氮基环加成（CuAAC）和硫醇-环氧点击反应验证了-CF和环氧-CF。A-CFs，N ₃ -CFs，Epoxy-CFs及其点击产物通过衰减全反射傅里叶变换红外光谱（ATR-FTIR）和X射线光电子能谱（XPS）进行表征。