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首页> 外文期刊>Journal of Applied Polymer Science >Investigation of Radiation-Grafted and Radiation-Modified N-Vinyl-2-pyrrolidone onto Polypropylene Film
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Investigation of Radiation-Grafted and Radiation-Modified N-Vinyl-2-pyrrolidone onto Polypropylene Film

机译：聚丙烯膜上辐射接枝和辐射改性的N-乙烯基-2-吡咯烷酮的研究

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摘要

The radiation-induced graft copolymerizaiton of N-vinyl-2-pyrrolidone (NVP) onto polypropylene films was investigated using the mutual method. The grafted polymer was modified with prepared #alpha#,#beta#-unsaturated nitrile (Scheme 1). The water uptake of the grafted and modified grafted films was found to increase with the degree of grafting. It was observed that the swelling behavior of the modified grafted films with #alpha#-cyano-#beta#-phenyl crotononitrile improved more than that of the film grafted and modified grafted with #alpha#-cyano-#beta#-(2-thienyl)crotononitrile or #alpha#-cyano-#beta#-(2-phridyl)crotononitrile. The modification process for the grafted substrate was confirmed by IR spectroscopy. No significant improvement was observed in thermal stability for the modified grafted films compared to the grafted films. Scanning electron microscoy (SEM) of the grafted and modified grafted membranes hetated to 150deg C showed change in the structure and morphology. Improvement in the hydrophilicity and morphology of these membranes with carbonitriles may increase the permeability of those membranes for some practical applications.
机译：采用相互法研究了N-乙烯基-2-吡咯烷酮（NVP）在聚丙烯薄膜上的辐射诱导接枝共聚反应。用制备的#alpha＃，＃beta＃-不饱和腈改性接枝聚合物（方案1）。发现接枝和改性的接枝膜的吸水率随接枝程度而增加。观察到，用＃alpha＃-氰基-＃beta＃-苯基丁烯腈改性的接枝薄膜的溶胀行为比用＃alpha＃-氰基-＃beta＃-（2-噻吩基）丁烯腈或＃alpha＃-氰基-＃beta＃-（2-phr啶基）丁烯腈。通过红外光谱证实了接枝基材的改性过程。与接枝膜相比，未发现改性接枝膜的热稳定性有显着改善。加热至150℃的接枝和改性接枝膜的扫描电子显微镜（SEM）显示出结构和形态的变化。对于一些实际应用，这些具有腈的膜的亲水性和形态的改善可以增加这些膜的渗透性。

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