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.
合成新型热致液晶聚脲,以含液晶联苯二(或联邻甲苯)、1,6-己二、2,4-甲苯二异氰酸料进行合成。
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.
合成新型热致液晶聚脲,以含液晶联苯二(或联邻甲苯)、1,6-己二、2,4-甲苯二异氰酸料进行合成。
Toluene diisocyanate (TDI) is one of the most useful kinds of isocyanateth that is produced by the method of phosgenation of amine.
甲苯二异氰酸(TDI)是异氰酸化合物中应用最广泛品种之一,其工业生产主要采用光化法。
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