• 乙酰氧基苯甲酸、对苯二酚酯、2,6-甲酸甲酸四种单体通过熔融缩聚反应,合成了芳香族四组分共聚酯

    The wholly aromatic four-component copolyesters were prepared from p-acetoxy-benzoic acid, hydroquinone diacetate, 2,6-naphthalene dicarboxylic acid and isophthalic acid by melting polycondensation.

    youdao

  • 乙酰氧基苯甲酸、对苯二酚酯、2,6-甲酸甲酸四种单体通过熔融缩聚反应,合成了芳香族四组分共聚酯

    The wholly aromatic four-component copolyesters were prepared from p-acetoxy-benzoic acid, hydroquinone diacetate, 2,6-naphthalene dicarboxylic acid and isophthalic acid by melting polycondensation.

    youdao

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