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解答:1.A new aromatic amine curing agent was synthesized from m aminophenol with 4, 4? ? - dichlorodiphenyl sulfone.
本文提出了由間氨基酚與4, 4′-二氯二苯砜反應(yīng)合成了一種新型的芳香族胺類固化劑.
2.Penicillin G sulfoxide diphenylcarbinol ester was synthesized by penicillin G potassium salt.
以青霉素G鉀為原料制備青霉素G亞砜二苯甲酯.
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為第三單體對聚對苯二甲酰對苯二胺(PPTA)的改性.
4.The overall yield was 38.3 % and the melting point was 131 - 133 jas.
再由二氯亞砜氯化之后與氨水在低溫下反應(yīng)制得3,5-二甲基苯甲酰胺,產(chǎn)品總收率38.3%,熔點(diǎn)131℃~133℃.
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