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解答:1.A new aromatic amine curing agent was synthesized from m aminophenol with 4, 4� � - dichlorodiphenyl sulfone.
本文提出了由间氨基酚与4, 4′-二氯二苯砜反应合成了一种新型的芳香族胺类固化剂.
2.Penicillin G sulfoxide diphenylcarbinol ester was synthesized by penicillin G potassium salt.
以青霉素G钾为原料制备青霉素G亚砜二苯甲酯.
3.Both amides and sullenly amides, used as the third monomer, are studied in modem PPTA.
研究了醚酰胺和砜酰胺作为第三单体对聚对苯二甲酰对苯二胺(PPTA)的改性.
4.The overall yield was 38.3 % and the melting point was 131 - 133 jas.
再由二氯亚砜氯化之后与氨水在低温下反应制得3,5-二甲基苯甲酰胺,产品总收率38.3%,熔点131℃~133℃.
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