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苯乙烯对马来酸酐熔融接枝聚丙烯的影响
引用本文:刘秀森,姚永南,胡江涛,朱艳秋,敖玉辉,张会轩. 苯乙烯对马来酸酐熔融接枝聚丙烯的影响[J]. 合成树脂及塑料, 2007, 24(6): 5-9
作者姓名:刘秀森  姚永南  胡江涛  朱艳秋  敖玉辉  张会轩
作者单位:长春工业大学生物工程学院,吉林,长春,130012;长春工业大学生物工程学院,吉林,长春,130012;中国科学院长春应用化学研究所,吉林,长春,130022
摘    要:用双螺杆挤出机分别制备了马来酸酐(MAH)和MAH-苯乙烯(St)共单体接枝共聚聚丙烯(PP)。红外光谱分析表明:MAH单体被接枝到PP大分子链上;引入St后,产物熔体流动速率从16.42 g/10min降为0.60 g/10 min;吸光度比从0.021升高到0.778,但St含量过高时,PP基体发生交联,影响接枝共聚物的加工性能。探讨了共单体St的作用机理以及交联机理。

关 键 词:共聚聚丙烯  熔融接枝  马来酸酐  苯乙烯  交联
文章编号:1002-1396(2007)06-0005-05
修稿时间:2007-06-25

Influence of styrene on melt grafting of polypropylene with maleic anhydride
Liu Xiusen,Yao Yongnan,Hu Jiangtao,Zhu Yanqiu,Ao Yuhui,Zhang Huixuan. Influence of styrene on melt grafting of polypropylene with maleic anhydride[J]. China Synthetic Resin and Plastics, 2007, 24(6): 5-9
Authors:Liu Xiusen  Yao Yongnan  Hu Jiangtao  Zhu Yanqiu  Ao Yuhui  Zhang Huixuan
Affiliation:1. Institute of Biological Engineering, Changchun University of Technology, Changchun 130012, China; 2. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
Abstract:Grafting of maleic anhydride(MAH)and styrene onto co-polypropylene(PP)was performed respectively via reactive extrusion by a two-screw extruder.The characterization by Fourier transform infrared spec- troscopy showed that the monomers of MAH were actually grafted onto PP macromolecular chains.The graft copolymer's melt flow rate decreased from 16.42 g/10 min to 0.60 g/10 min and absorbance increased from 0.021 to 0.778 after the addition of styrene.However,in case styrene concentration was overhigh,severe cross linking appeared in the PP matrix,thereby bringing about an impact on processability of the graft copolymer.The action mechanism and cross linking mechanism of styrene were also studied.
Keywords:co-polypropylene  melt grafting  maleic anhydride  styrene  crosslinking
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