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首页> 外文期刊>Journal of Polymer Research >Improvements of polypropylene grafted maleic anhydride with ultrasonication, pre-irradiation and co-irradiation methods
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Improvements of polypropylene grafted maleic anhydride with ultrasonication, pre-irradiation and co-irradiation methods

机译：超声，预辐照和共辐照法对聚丙烯接枝马来酸酐的改进

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This paper presented many improvements of polypropylene (PP) grafted maleic anhydride (MAH), including how to increase graft degree (G) and graft efficiency (G _E) of MAH onto PP and how to reduce side reactions during grafting. Three grafting methods ultrasonication, pre-irradiation and co-irradiation were employed, and a lot of additives were adopted in our research, such as styrene (St), ethyl benzoate, dibutyl phthalate (DBP), 2,2-bipyridine, divinylbenzene (DVB), benzoyl peroxide (BPO) and p-hydroquinone. The effects of the different grafting methods and additives were determined by G and G _E values, viscosity, FTIR and DSC. Experimental results showed that the highest G value was obtained in co-irradiation method in the presence of St, and side reactions could be also reduced. The best reflux time for G value measuring, the storage time on G and batch feeding times of MAH on G in pre-irradiation method, and the mechanism of PP grafted MAH were all studied.
机译：本文介绍了聚丙烯（PP）接枝马来酸酐（MAH）的许多改进，包括如何提高MAH在PP上的接枝度（G）和接枝效率（G _E）以及如何减少接枝过程中的副反应。超声，预辐照和共辐照三种接枝方法被采用，我们的研究中采用了大量的添加剂，例如苯乙烯（St），苯甲酸乙酯，邻苯二甲酸二丁酯（DBP），2,2-联吡啶，二乙烯基苯（ DVB），过氧化苯甲酰（BPO）和对氢醌。通过G和G_E值，粘度，FTIR和DSC确定不同的接枝方法和添加剂的影响。实验结果表明，在有St的条件下，共辐照法获得了最高的G值，并且还可以减少副反应。研究了预辐照法测定G值的最佳回流时间，在G上的储存时间和MAH在G上的分批进料时间，以及PP接枝MAH的机理。

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