CAJ | 학술논문

用混溶蒸发法制备出一系列高聚物P（EO）n-CuBr2（n＝4，8，12，16，24）薄膜，并详细测量它们在0．1～350MPa静水压范围内的复阻抗谱、在0．1～2400MPa静水压范围内的交流电导率以及介电常数。结果表明：离子电导率对压力的依赖关系（σ-p曲线)是条折线，可分解为四条直线相迭加。进一步做X射线衍射物相分析，它们分别归于PEO非晶相的压力效应、PEO结晶相的压力效应和析出CuBr2新相的压力效应。由此计算出上述三种不同相所对应的激活体积、截止压力各自随高聚物P（EO）n-CuBr薄膜组分的变化。为减小离子电导率的压力效应提供了物理基础。
용혼용증발법제비출일계렬고취물P（EO）n-CuBr2（n＝4，8，12，16，24）박막，병상세측량타문재0．1～350MPa정수압범위내적복조항보、재0．1～2400MPa정수압범위내적교류전도솔이급개전상수。결과표명：리자전도솔대압력적의뢰관계（σ-p곡선)시조절선，가분해위사조직선상질가。진일보주X사선연사물상분석，타문분별귀우PEO비정상적압력효응、PEO결정상적압력효응화석출CuBr2신상적압력효응。유차계산출상술삼충불동상소대응적격활체적、절지압력각자수고취물P（EO）n-CuBr박막조분적변화。위감소리자전도솔적압력효응제공료물리기출。
With the addition of different weight of CuBr2(ratio n＝［EO］／［Cu］＝4，8，12，16，24）to polyethylene oxide(molecular weight 5×106），a series of high polymer ionic conductors P(EO)n-CuBr2 were prepared.Both complex impedance spectra of samples in the hydrostatic pressure range from 0.1 to 350MPa and alternating current conductivity of samples in the pressure range from 0.1 to 2400MPa were measured in detail.Results show that the pressure dependence of conductivity can be decomposed into four linear parts.According to the phase analysis from X-ray diffraction patterns,it is found that three of the four straight lines correspond to the pressure effects of the amorphous phase of PEO,the crystalline phase of PEO,and the new phase of CuBr2.Hence the composition dependence of the corresponding activation volume and cutoff pressure of the three types of conductivity-pressure effects can be calculated.