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首页> 外文期刊>Journal of Applied Polymer Science >MODIFICATION OF POLYOLEFIN SURFACES BY PLASMA-INDUCED GRAFTING
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MODIFICATION OF POLYOLEFIN SURFACES BY PLASMA-INDUCED GRAFTING

机译：等离子体诱导接枝改性聚烯烃表面

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Polar monomers have been grafted onto polyolefin surfaces with the aid of inert gas plasma. In the first stage, an inert gas plasma (argon plasma) was used to generate free radicals on the polyolefin surface. In the second stage, the plasma generator was turned off and a vinyl monomer introduced as a vapor. Monomer was surface grafted by free radical polymerization. After cleaning and drying, the samples were analyzed by XPS, IR, and contact angle. LD-PE was successfully grafted with acrylic acid, glycidyl methacrylate, methyl acrylate, and 2-hydroxy ethylacrylate. The grafting of acrylic acid was studied in more detail, and the rate of grafting was observed to increase with increasing monomer pressure and to decrease with time. The increasing of grafting temperature was found to reduce the degree of grafting. This last factor can be explained by the reduced concentration of monomer at the polymer surface or by a deactivation of surface radicals. (C) 1996 John Wiley & Sons, Inc. [References: 16]
机译：借助于惰性气体等离子体将极性单体接枝到聚烯烃表面上。在第一阶段，使用惰性气体等离子体（氩等离子体）在聚烯烃表面上生成自由基。在第二阶段中，关闭等离子体发生器，并以蒸气形式引入乙烯基单体。通过自由基聚合将单体表面接枝。清洁和干燥后，通过XPS，IR和接触角分析样品。 LD-PE已成功接枝丙烯酸，甲基丙烯酸缩水甘油酯，丙烯酸甲酯和丙烯酸2-羟乙酯。对丙烯酸的接枝进行了更详细的研究，观察到接枝率随单体压力的增加而增加，并随时间降低。发现增加接枝温度降低了接枝度。最后一个因素可以通过降低聚合物表面上单体的浓度或通过使表面自由基失活来解释。 （C）1996 John Wiley＆Sons，Inc. [参考：16]

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