超支化聚合物的季铵盐修饰及其在木棉纤维活性染料染色中的应用

The modifition of hyperbranched polymers with quaternary ammonium salt and its application on kapok fiber reactive dyeing

以丙烯酸甲酯和二乙烯三胺为原料，合成了水溶性端氨基超支化聚合物（HBP-NH2），并将其与自制的阳离子改性剂接枝合成了季铵盐超支化聚合物（HBP-HDC）。通过红外分光光度计对产品进行了表征，确证了HBP—NH，的制备成功；通过核磁共振谱图确证了HBP-NH2与阳离子改性剂接枝成功。HBP-HDC改性木棉纤维的工艺：阳离子改性剂与超支化聚合物的合成比为4：1；HBP-HDC的质量浓度为4g／L，温度50℃，浴比1：100，改性液pH=9，改性时间30min。活性染料NovacronREDFN—R在改性后木棉纤维上的上染率约98％，固色率约78％，K／S值为7．98，耐水洗色牢度4～5级，均较未改性木棉有较大的提高。

The water soluble amino-terminated hyperbranched polymer （HBP-NH2） was synthesized with Methacrylate and Diethylenetriamine. Then the quaternary ammonium hyperbranched polymers （HBP-HDC） was prepared with self- made cationic modification and hyperbranched polymers. The Infrared spectroscopy analysis confirmed the synthesis of HBP-NH2 and the NMR spectrum analysis confirmed that cationic modification was successfully grafted onto HBP-NH2. The Modification process of kapok fiber with HBP-HDC is as following： the composition ratio of cationic modification and hyperbranched polymer 4 ： 1, HBP-HDC concentration 4 g/L, modification temperature 50 ℃, bath ratiol ： 100, pH=9 and modification time 30 min. After the modification, the dyed fabric showed obvious improvement on the dyeing properties compared to the control one, with the dye uptake 98%, fixation rate 78%, K/S value 7.98 and washing fastness 4-5 grades.