Two series of thermotropic liquid crystalline polyureas were synthesized by the copolymerization of benzidine (or o-tolidine),1,6-hexane diamine and 2,4-toluene diisocyanate.
为合成新型晶聚脲,以含晶基元的联苯(或联邻甲苯)、1,6-己、2,4-甲苯酸酯为原料进行合成。
Two series of thermotropic liquid crystalline polyureas were synthesized by the copolymerization of benzidine (or o-tolidine),1,6-hexane diamine and 2,4-toluene diisocyanate.
为合成新型晶聚脲,以含晶基元的联苯(或联邻甲苯)、1,6-己、2,4-甲苯酸酯为原料进行合成。
Toluene diisocyanate (TDI) is one of the most useful kinds of isocyanateth that is produced by the method of phosgenation of amine.
甲苯酸酯(TDI)是酸酯化合物中应用最广泛的品种之一,其工业生产主要采用光化法。
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