Ultrasound initiated maleic anhydride grafted onto a novel polypropylene copolymer
Ultrasound initiated maleic anhydride grafted onto a novel polypropylene copolymer
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DOI：
10.1002/pen.22112
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发表时间：
2012-03
影响因子：
3.2
通讯作者：
Bo Peng;Hong Wu;W. Bao;Shaoyun Guo;Yong Chen;Hua Huang;S. Lai;J. Jow
中科院分区：
文献类型：
--
作者：
Bo Peng;Hong Wu;W. Bao;Shaoyun Guo;Yong Chen;Hua Huang;S. Lai;J. Jow
采用超声波辅助挤出技术，在不添加引发剂的条件下，研究了马来酸酐（MAH）与丙烯基共聚物（DP）的接枝反应。研究了超声功率、模头温度、马来酸酐含量对接枝率和接枝效率的影响。随着超声功率的增加，DP-g-MAH的接枝率和接枝效率增加。采用较高功率的超声波和较低的模头温度有利于提高接枝率和接枝效率。MAH含量的增加可提高接枝率，但降低接枝效率。通过熔体流动指数、动态流变学、凝胶渗透色谱（GPC）和傅立叶变换红外光谱（FTIR）等测试，对接枝反应机理进行了探讨。Polym.工程科学，2012.© 2011年塑料工程师协会
The reaction of maleic anhydride (MAH) grafted onto propylene-based copolymer (DP) without adding any initiator was conducted through ultrasound assisted extrusion in this article. The effects of ultrasound power, die temperature, and MAH content on the grafting degree and efficiency were studied. With increasing ultrasound power, the grafting degree and efficiency of DP-g-MAH increase. The presence of ultrasound with higher power and lower die temperature is beneficial to increase the grafting degree and efficiency. The increase of MAH content can increase the grafting degree but reduce the grafting efficiency. Based on the results of melt flow index, dynamical rheological, gel permeation chromatograph (GPC), and Fourier transform infrared spectroscopy (FTIR) tests, the mechanisms of the grafting reaction were proposed. POLYM. ENG. SCI., 2012. © 2011 Society of Plastics Engineers