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计算了梳型聚合物双轴丝状相液晶侧链的扭曲缺陷能 ,对处于外电场的侧链 ,将其哈密顿量与一维Ising模型相比较 ,得到侧链在外电场中的极化率 .结果表明 ,聚合物的电极化率远大于普通液晶 .在低温下 ,两者之间的比值趋于聚合度N .对弛豫时间的计算表明 ,聚合物液晶的极化达到饱和的时间很长 ,在低温下是普通液晶的N倍 ,而介电损耗出现的频率则为普通液晶的 1/N倍 .
The torsional defect energy of the side chain of the biaxial filamentous liquid phase of the comb polymer was calculated. The side chain in the external electric field was calculated and the Hamiltonian of the comb polymer was compared with the one-dimensional Ising model. The polarizability of the side chain in the external electric field . The results show that the polymer is much more than the average polarizability of ordinary liquid crystal at low temperatures, the ratio between the two tends to degree of polymerization N. Calculation of the relaxation time shows that the polarization of the polymer liquid crystal is saturated time is very Long, at low temperature is N times the ordinary LCD, while the dielectric loss frequency is 1 / N times the normal LCD.