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Electron beam induced modification of poly(ethylene terephthalate) films

机译:电子束诱导的聚对苯二甲酸乙二醇酯薄膜的改性

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Electron beam processing of poly(ethylene terephthalate) (PET) films is found to promote significant changes in the melting heat, intrinsic viscosity and polymer film-liquid (water, isooctane and toluene) boundary surface tension. These properties are featured with several maximums depending on the absorbed dose and correlating with the modification of PET surface functionality. Studies using adsorption of acid-base indicators and IR-spectroscopy revealed that the increase of PET surface hydrophilicity is determined by the oxidation of methylene and methyne groups. Electron beam treatment of PET films on the surface of N-vinylpyrrolidone aqueous solution provided graft copolymerization with this comonomer at optimum process parameters (energy 700 keV, current 1 mA, absorbed dose 50 kGy). (c) 2006 Elsevier B.V All rights reserved.
机译:发现聚对苯二甲酸乙二醇酯(PET)薄膜的电子束处理可促进熔融热,特性粘度和聚合物薄膜-液体(水,异辛烷和甲苯)的边界表面张力发生显着变化。这些特性的特征在于吸收剂量的几个最大值,并且与PET表面功能的改变相关。使用酸碱指示剂的吸附和红外光谱进行的研究表明,PET表面亲水性的提高取决于亚甲基和亚甲基的氧化。在最佳工艺参数(能量700 keV,电流1 mA,吸收剂量50 kGy)下,用电子束处理N-乙烯基吡咯烷酮水溶液表面的PET膜可与该共聚单体进行接枝共聚。 (c)2006 Elsevier B.V保留所有权利。

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