中文摘要：

为开发具有良好抗菌性能的真丝内衣面料,采用原子转移自由基聚合法（ATRP）,以真丝大分子制备引发剂,以CuBr/N,N,N′,N′′,N′′-五甲基二乙烯三胺（PMDETA）为催化体系,以水/乙醇为介质,将单体异丁酰酸-2-二乙氨基乙酯（DEAEMA）接枝到真丝织物上。X-线光电子能谱（XPS）检测Br以共价键方式固定到了真丝织物的表面,显示真丝大分子引发剂制备成功;衰减全反射红外光谱（ATR-FTIR）和差热扫描分析（DSC）均表明DEAEMA单体已接枝到真丝织物上,且织物的热稳定性能提高,热焓随接枝率的升高而降低;X-射线衍射图谱表明接枝反应主要发生在蚕丝纤维的无定形区,而结晶结构基本未改变。接枝后的真丝织物经季铵化处理后具有很好的抗菌性能,且抑菌率随接枝率增加而提高。

英文摘要：

In order to develop silk underwear fabric with good anti-bacterial property,the modified silk was prepared using 2-diethylaminoethyl methacrylate（DEAEMA） as monomer,CuBr/N,N,N′,N″,N″-pentamethyldiethylenetriamine（PMDETA） as catalyst system via atom transfer radical polymerization（ATRP） method in water/ethanol media.The result of X-ray photoelectron spectrum（XPS） showed that Br had been covalently bonded to the surface of silk fabric and silk macroinitiator was thus successfully prepared.The attenuated total reflectance-Fourier transfer infrared spectrum（ATR-FTIR） and differential scanning calorimetry（DSC） indicated that DEAEMA monomer had already been grafted on silk.The grafted silk had better thermostability and its enthalpy declined as grafting rate increased.X-ray diffraction curves showed that grafting mainly occurred at the amorphous region of silk fiber and structure of the crystal almost remained the same.The grafted silk had superior anti-bacterial property after quaternization.And the anti-bacterial rate increased with the grafting rate.