中文摘要：

以阳离子玉米淀粉（CS）为原料，丙烯酰胺（AM）、甲基丙烯酸－8－羟乙酯（HEMA）和丙烯酸丁酯（BA）为单体在微波场中进行接枝共聚，制备出接枝阳离子淀粉（GCS）。通过FTIR、SEM和XRD对产物的结构进行了表征．系统研究了产物的理化特性，并测试了其粘附性能。结果表明，经微波辐射接枝变性，C-CS理化性能改善：淀粉结晶度降低，团粒结构弱化，水舍能力增强；特性粘度与表观粘度下降，流变性能改善。GCS对涤棉纤维粘附性提高，克服了PVA对疏水性合成纤维粘附力不足的缺陷。深入探讨了淀粉理化特性对其浆用性能的影响机理。

英文摘要：

Graft cationic starch （GCS） was synthesized by microwave radiation using acrylamide （AM）, t3 hydroxyethyl methacrylate （HEMA） and n butyl acrylate （BA） as grafting monomers. The graft copolymer was characterized by FT IR, SEM and XRD, the physicochemicat characteristics were studied and the adhesion properties were tested. Results showed that after microwave-initiate grafting modification, the physicochemical properties of GCS improved： the crystallinity reduced, granular structure weakened, hydration capacity raised; the intrinsic viscosity, apparent viscosity decreased, rheological property improved. The adhesion to polyester/ cotton fibers of GCS was enhanced, which compensated for the insufficient adhesion to hydrophobic fibers of PVA. The mechanisms that starch physicochemical properties affect its sizing properties were discussed.