By using strongly acidic cation ion exchange resins as catalyst, C4 - C6 mixed dibasic acids as materials, dibasic acid dimethyl esters were prepared.

• 以工业生产尼龙66副产物C4-C6混合二元酸为原料,强酸性阳离子交换树脂为催化剂,合成混合二元酸二甲酯。