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从室温至380K测量了热致液晶4-己氧基苯甲酸4-氰基苯酯（CPHOB）的氢核磁共振谱．其固态至向列相的转变温度Tsn=347K，向列相至各向同性液体的转变温度Tni=359K．得到了液晶态有序参数的温度关系．讨论了氢核磁共振的自旋晶格弛豫机制．The proton magnetic resonance spectra of 4-cyanophenyl 4′-hexyloxy benzoate (CPHOB) were measured from room temperature to 380K. It was found that the transition temperature from solid to nematic phase was Tｓｎ=347K, and the transition temperature from nematic phase to isotropic liquid Tｎi=359K. The temperature dependence of its order parameter was evaluated. Its mechanism of proton spin lattice relaxation was discussed.
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