【摘要】 选用分子量为 5 0 0万的聚氧化乙烯和无水溴化铜 ,通过混溶蒸发法制备出一系列高聚物P(EO) n CuBr2 (n =4 ,8,12 ,16,2 4 )薄膜 ,并在 0 1～ 2 4 4 3MPa范围不同的静水压下详细测量了它们的相对介电常数。分别探讨了增塑剂 (C4 H6O3)含量对室温常压下离子电导率和介电常数的影响 ,及其对高压下离子电导率和介电常数的影响。实验结果表明 :P(EO) 16 CuBr2 薄膜在添加介电常数较高和本体粘度较低的增塑剂C4 H6O3后 ,当其相对浓度nPC/ntotal=2 0 %时 ,不仅使该薄膜的室温常压离子电导率明显提高 6 8倍 ,而且使其在高压力下的离子电导率提高 1(0 1～ 10 0MPa)至 2 (35 0～80 0MPa)个数量级 ,非常有利于在高压环境中应用。更多还原

【Abstract】 Through the addition of different weights of non aqueous CuBr 2 to polyethylene oxide (molecular weight 5×10 6),a series of high polymer film P(EO) n CuBr 2(mole ratio n =/=4,8,12,16,24) were prepared with the method of mixed solution and evaporation in vacuum.Their relative permittivity was measured in detail under hydrostatic pressure from 0.1 MPa to 2443 MPa.The effect of content of plasticizer (C 4H 6O 3) on both ionic conductivity and permittivity at room temperature and under 1 atmosphere or high pressure were studied respectively.The experimental results show that the film P(EO) 16 CuBr 2 mingled with plasticizer C 4H 6O 3 which possesses higher permittivity and extremely low intrinsic viscosity when the concentration n PC / n total =20%,not only has ionic conductivity at room temperature and under 1 atmosphere enhanced 6.8 times,but also has ionic conductivity under high pressure enhanced from one order of magnitude (under 0.1～100 MPa) to two orders of magnitude (under 250～800 MPa).The enhancement contributes greatly to the application of the film in high pressure state.更多还原