Liquid crystalline physical gels (LCPGs) with stable mechanical properties and fast electro-optical response properties were prepared through the self-assembly of side chain liquid crystalline polymers (SCLCPs) with different spacer length poly [ω-4′-cyano-(1, 1′-biphenyl)] acrylate (PmACB, m is the spacer length of SCLCP, m = 0, 2, 4) as gelators in a nematic liquid crystal, 4-pentyl-4′-cyanobiphenyl (5CB). The gel-sol phase transition temperature (T_GS), micro morphology, mechanical properties and electro-optical properties of LCPGs (SCLCPs/5CB) were systematically studied. The results show that only P0ACB can form stable liquid crystalline physical gels in 5CB and show excellent thermal stability, good self-supporting ability and fast electro-optical response properties. The T_GS of 6 wt% P0ACB/5CB gel is 192 °C, and it also showed stable mechanical properties, its storage modulus is about 1.0 × 10⁴ Pa. The threshold voltage (V_th) and saturation voltage (V_sat) of P0ACB/5CB gel with 3 wt% concentration are 0.29 V μm⁻¹and 3.906 V μm⁻¹ respectively, and the off state response time is only 6.748 ms. Moreover, the addition of the polymer does not affect the electro-optical response of the LCPGs.

通过具有不同间隔长度的聚[ω-4'-氰基-（1，在向列型液晶4-戊基-4'-氰基联苯（5CB）中作为胶凝剂的1'-联苯）]丙烯酸酯（PmACB，m为SCLCP的间隔基长度，m = 0、2、4）。系统地研究了LCPG（SCLCPs / 5CB）的凝胶-溶胶相变温度（T _GS），微观形貌，力学性能和电光性能。结果表明，只有POCAB才能在5CB中形成稳定的液晶物理凝胶，并具有出色的热稳定性，良好的自支撑能力和快速的电光响应特性。T _GS6 wt％的P0ACB / 5CB凝胶的熔点为192°C，并且还显示出稳定的机械性能，其储能模量约为1.0×10 ⁴ Pa。P0ACB / 5CB 的阈值电压（V _th）和饱和电压（V _sat）浓度为3 wt％的凝胶分别为0.29 Vμm ^-1和3.906 Vμm ^-1，并且关闭状态响应时间仅为6.748 ms。此外，聚合物的添加不会影响LCPG的电光响应。