• 氟代甲苯出发,醋酸溶剂,采用液相空气氧化法,在锰盐1,1,2,2-四溴乙烷催化体系存在下,合成了氟代苯甲酸,采用升华方法进行精制

    Fluorobenzoic acids were prepared from fluorotoluenes through liquid phase air oxidation with acetic acid as solvent and Co~(2+)-Mn~(2+)-1, 1,2,2-tetrabromoethane as catalyst.

    youdao

  • 液态橡胶、尔酮二异氰酸酯扩链剂3,6 -二甲硫基-2 ,5 -胺为原料,合成了不同硬段质量分数的聚硫硫聚脲。

    A series of polysulfide based thio-polyurea was synthesized, which were based on isophorone diisocyanate, liquid polysulfide and 2,5-diamino-3,6-dimethylmercapto toluene.

    youdao

  • 液态橡胶、尔酮二异氰酸酯扩链剂3,6 -二甲硫基-2 ,5 -胺为原料,合成了不同硬段质量分数的聚硫硫聚脲。

    A series of polysulfide based thio-polyurea was synthesized, which were based on isophorone diisocyanate, liquid polysulfide and 2,5-diamino-3,6-dimethylmercapto toluene.

    youdao

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