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首页> 外文期刊>Journal of Applied Polymer Science >POLYOLEFIN/POLYSTYRENE IN SITU COMPATIBILIZATION USING FRIEDEL-CRAFTS ALKYLATION
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POLYOLEFIN/POLYSTYRENE IN SITU COMPATIBILIZATION USING FRIEDEL-CRAFTS ALKYLATION

机译：弗里德尔-克拉夫茨烷基化反应原位相容聚烯烃/聚烯烃

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摘要

Polyolefin/polystyrene (PS) blends are difficult to compatibilize using in situ reactive compatibilization techniques, because neither of these polymers has any functional groups that one can use in the formation of a copolymer from these polymer components. In this study, the Friedel-Crafts alkylation was realized in a polyethylene/PS (PE/PS) melt blend, which resulted in improved compatibility between PE and PS. A number of Lewis acid compounds were tested as catalysts, among which the AlCl3 was the most efficient. It was found in this study that the presence of a cocatalyst, such as a cationically polymerizable monomer or a halogenated alkane, significantly enhances the formation of PE-g-PS copolymer. The effects of blending parameters, such as temperature and blending time, on the in situ copolymer formation were investigated. The mechanical properties of compatibilized PE/PS blends were improved considerably. Such an in situ compatibilization technique has potential in the recycling of mixed polymer wastes. (C) 1997 John Wiley & Sons, Inc. [References: 14]
机译：聚烯烃/聚苯乙烯（PS）共混物很难使用原位反应性增容技术进行增容，因为这些聚合物均不具有可用于由这些聚合物组分形成共聚物的任何官能团。在这项研究中，Friedel-Crafts烷基化反应是在聚乙烯/ PS（PE / PS）熔融共混物中实现的，从而改善了PE和PS之间的相容性。测试了许多路易斯酸化合物作为催化剂，其中AlCl3是最有效的。在这项研究中发现，助催化剂（例如可阳离子聚合的单体或卤代烷烃）的存在显着增强了PE-g-PS共聚物的形成。研究了共混参数（如温度和共混时间）对原位共聚物形成的影响。相容的PE / PS共混物的机械性能得到了显着改善。这种原位增容技术在回收混合聚合物废料中具有潜力。 （C）1997 John Wiley＆Sons，Inc. [参考：14]

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