【摘要】 合成了具有液晶性质的二元醇一对苯二甲酰二羟苯甲酸丁二醇酯（ＴＯＢＢ），这种二元醇单独或与端羟基聚了二烯（ＨＴＰＢ）混合后与二异氰酸酯反应生成几种聚氨酯，用ＩＲ，ＤＳＣ，偏光显微镜和ＷＡＸＤ对它们进行了表征，证明这种二元醇和聚氨酯都具有液晶性质。更多还原

【Abstract】 Liquid crystalline diol, terephthaloyl dioxydibenzonic acid butanediol ester (TOBB), wassynthesized, and it alone or with hydroxy-terminated POlybutadiene (HTPB) reacted with diisocyanatesto form liquid crystalline Polyurethanes. By using IR, DSC, polarizing microscopy and WAXDtechniques, it is proved that the diol and the polyurethanes based on did have liquid crystalline behaviour.更多还原