【作者】 戚嵘嵘； 钱钧岭； 周持兴；

【Author】 Qi Rongrong, Qian Junling, Zhou Chixing( School of Chemistry and Chemical Engineering, Shanghai JiaoTong University, Shanghai 200240. China 1

【机构】 上海交通大学化学化工学院；

【摘要】 研究了在双螺杆挤出机中马来酸酐(MAH)熔融接枝(丙烯腈/丁二烯/苯乙烯)三元共聚物(ABS)的反应使用自制的引发剂,对反应机理进行了讨论。红外光谱分析证明MAH成功地被接枝到ABS的主链上。对ABS的组分分离证明接枝发生在ABS的丁二烯部分。详细研究了MAH用量、引发剂浓度、反应温度和螺杆转速及溶剂对接枝反应的影响,发现接枝率随着MAH用量的增加,反应时间和螺杆转速增大;当增大引发剂浓度时,接枝率呈现先增加后降低的趋势;自制引发剂比通常的DCP或BPO引发剂接枝效果要好得多,而且受加工条件的影响小。更多还原

【Abstract】 The graft compolymerization of maleic anhydride ( MAH) onto acrylonitrile - butadiene - styrene terpolymer ( ABS) in molten state with twin screw extruder. Infrared spectra confirmed that maleic anhydride was successfully grafted onto the ABS backbone. The separation results of grafted copolymers indicated that the grafting occurred at the butadiene portion of ABS. The influence of the amount of MAH, initiator’s concentration, reaction temperature and rotating speed was studied in the paper.更多还原