Cross-linked cellulose-epichlorohydrin polymers were synthesized by a conventional heating with stirring (C-EP heating) and a parallel process using ultra-sonication (C-EP sonication) in the presence of aqueous ammonia. Structural characterization of modified cellulose was carried out using FTIR/¹³C solid state NMR spectroscopy and thermal methods (DSC and TGA) to characterize the cross-linked products by conventional versus sonication assisted synthesis. Evidence of products with variable textural properties and morphology was supported by nitrogen gas adsorption, solvent swelling, and microscopy (SEM, TEM) results. C-EP sonication possess greater cross-linker content judging by the loss of the cellulose fibril structure which was facilitated by acoustic cavitation effects due to ultra-sonication. Equilibrium sorption studies in aqueous solution with 2-naphthoxy acetic acid (NAA) revealed that C-EP heating had slightly greater sorption capacity than C-EP sonication at alkaline pH. By contrast, C-EP sonication had greater uptake of NAA at acidic pH. Kinetic uptake studies at pH 3 is described by the pseudo-second order model, where the surface sites of C-EP heating became saturated within ca. 75 minutes; whereas, ca. 350 minutes occurred for C-EP sonication. This study demonstrates that the yield of sonication assisted cross-linking of cellulose is greater with improved adsorption properties. The study also reveals the utility of sonicated assisted synthesis for the valorization and utilization of cellulose modified materials.

交联的纤维素-表氯醇聚合物是通过在搅拌下通过常规加热（C-EP加热）和在氨水存在下使用超声处理（C-EP超声处理）的平行工艺合成的。改性纤维素的结构表征使用FTIR / ¹³ C固态NMR光谱和热方法（DSC和TGA）进行，以通过常规与超声辅助合成来表征交联产物。氮气吸附，溶剂溶胀和显微镜（SEM，TEM）结果支持了具有不同质地和形态的产品的证据。C-EP超声由纤维素原纤维结构的损失判断，具有较大的交联剂含量，这是由于超声作用引起的声空化作用而促进的。用2-萘氧基乙酸（NAA）在水溶液中进行的平衡吸附研究表明，在碱性pH下，C-EP加热比C-EP超声处理具有更大的吸附能力。相比之下，C-EP超声处理在酸性pH下对NAA的吸收更大。假二级模型描述了pH为3时的动力学吸收研究，其中C-EP加热的表面位点在约3分钟内达到饱和。75分钟; 而，ca。C-EP超声处理发生了350分钟。这项研究表明，通过超声处理，纤维素的交联收率更高，并且具有改善的吸附性能。该研究还揭示了超声辅助合成在纤维素改性材料的评估和利用中的实用性。