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首页> 外文期刊>Journal of Applied Polymer Science >PREPARATION AND CHARACTERIZATION OF TEFLON-FEP FILMS CRAFTED WITH ACRYLIC ACID BY RADIOCHEMICAL METHOD
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PREPARATION AND CHARACTERIZATION OF TEFLON-FEP FILMS CRAFTED WITH ACRYLIC ACID BY RADIOCHEMICAL METHOD

机译：辐射化学法制备丙烯酸酯化的聚四氟乙烯薄膜的制备与表征

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摘要

In an attempt to prepare permselective membrane, grafting of acrylic acid (AAc) onto Teflon-fluorinated ethylene-propylene (FEP) film was studied in aqueous medium by the preirradiation method in air. Grafting was carried out by heating a mixture of AAc, water, and preirradiated Teflon-FEP film in air at 93 degrees C for definite time periods. Percentage of grafting was determined as a function of total dose, monomer concentration, reaction time, and amount of water. Maximum percentage of grafting (60.17%) was obtained at a total dose of 4.8 Mrad using 0.07M [AAc]. Evidence of grafting was obtained from the physical appearance and swelling behavior of the grafted film in polar solvents. Infrared spectroscopic and thermal analysis of the grafted film provided additional evidence for grafting. A plausible mechanism for grafting of AAc onto preirradiated Teflon-FEP film in air has been proposed. (C) 1995 John Wiley and Sons, Inc. [References: 7]
机译：为了制备选择性渗透膜，通过在空气中的预辐照方法研究了丙烯酸（AAc）在聚四氟乙烯-氟化乙烯-丙烯（FEP）膜上的接枝。通过在空气中于93摄氏度下加热AAc，水和预辐照的Teflon-FEP薄膜的混合物进行一定时间的接枝。确定接枝百分比为总剂量，单体浓度，反应时间和水量的函数。使用0.07M [AAc]的总剂量为4.8 Mrad，可获得最大的接枝百分比（60.17％）。从接枝薄膜在极性溶剂中的物理外观和溶胀行为获得了接枝证据。接枝膜的红外光谱和热分析为接枝提供了额外的证据。提出了在空气中将AAc接枝到预辐照的Teflon-FEP薄膜上的合理机制。 （C）1995 John Wiley and Sons，Inc. [参考：7]

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