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酸碱滴定法测定马来酸酐接枝氯化聚丙烯的接枝率
STUDY ON THE GRAFTNG YELD OF MALEC ANHYDRDE GRAFTED CHLORNATED POLYPROPYLENE BY NEUTRALZATON TTRATON
【摘要】 讨论了测定马来酸酐接枝氯化聚丙烯[(PP-C)-g-MAH]接枝率的重要意义,分析了几种接枝率测定方法的优缺点。针对(PP-C)-g-MAH的特殊结构,研究了一种利用酸碱滴定法准确测定接枝物酸值的测定方法。通过考察(PP-C)-g-MAH主链上叔碳氯脱除量的影响因素,确定了接枝率测定方法的工艺参数,并对误差情况进行分析。
【Abstract】 The important significance of measuring the grafting rate of maleic anhydride grafted chlorinated polypropylene[(PP-C)-g-MAH] was discussed,and the merits and demerits of several methods for measuring the grafting rate were analyzed.A method for exactly measuring the acid value of(PP-C)-g-MAH by neutralization titration was researched according to it’s special structure.The parameters of method for measuring the grafting rate was established by investigating influence factors of dechlorinating of(PP-C)-g-MAH main chain tertiary carbon chlorin and the error conditions were analysed.
【Key words】 maleic anhydride; graft; chlorinated polypropylene; neutralization titration; grafting yield;
- 【文献出处】 工程塑料应用 ,Engineering Plastics Application , 编辑部邮箱 ,2009年01期
- 【分类号】TQ325.14
- 【被引频次】25
- 【下载频次】1298