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乙烯的多聚物多聚乙烯(C_2H_4)_n和我們所知的其他塑料不同,在温度昇高时並不軟化,而像晶体一样有着一定的熔点。卓越的介电性使它成为無線电裝置尤其和雷达仪器最需要的材料,也可採用它作为电線及电纜的絕緣物或利用它浸染織物,用它制成的薄片柔韧但同时具有彈性。假使在乙烯中氢原子以氟代替,則得四氟乙烯CF_2=CF_2,这个物質的聚合物——四氟聚烯——保持多聚乙烯的高度絕緣性,但具有更好的耐热性和不燃性,把它加热到350℃而毫不改变。四氟聚烯具有完全独特的化学稳定性,
Ethylene Polymers Polyethylene (C_2H_4) _n, unlike other plastics we know, does not soften at elevated temperatures and has a certain melting point like crystals. Its superior dielectric properties make it the most desirable material for radio applications, especially for radar applications. It can also be used as an insulation for wires and cables or it can be used to soak fabrics, and the sheets made from it are flexible yet flexible. If hydrogen atoms in ethylene are replaced by fluorine, tetrafluoroethylene CF2 = CF2 is obtained. The polymer of this material, tetrafluoroethylene, maintains a high degree of insulation of polyethylene but has better heat resistance and Non-flammable, it is heated to 350 ℃ without change. Tetrafluoroolefin has a completely unique chemical stability,