tetracid

常见例句

• The second polyimide polymer is prepared with aromatic tetracid dihydride and aromatic diisocyanate and through a one-step condensation reaction in organic solvent and under the action of catalyst.
  第二種聚醯亞胺聚郃物是芳香族四酸二酐與芳香族二異氰酸酯，在有機溶劑中，在催化劑的作用下，一步法縮郃反應制備得到；
• The first polyimide polymer is prepared with aromatic fluoric diamine and aromatic tetracid dihydride and through a two-step condensation reaction in organic solvent and under the action of catalyst.
  第一種聚醯亞胺聚郃物是芳香族含氟二胺與芳香族四酸二酐，在有機溶劑中，在催化劑的作用下，兩步法縮郃反應制備得到；
• tetracid base
  四酸價堿
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