【摘要】 采用线性聚3,4-乙烯二氧噻吩/聚苯乙烯磺酸（PEDOT∶PSS）与交联聚乙烯醇（PVA），以不同质量比制备了系列半互穿网络结构的导电聚合物PEDOT∶PSS/PVA。采用傅里叶变换红外光谱（FT-IR）、拉曼光谱、X射线衍射（XRD）、热失重分析（TGA）、四探针测试和电子式万能试验机对导电聚合物进行性能表征。结果表明，PVA与PEDOT∶PSS能够在一定范围内良好相容，通过氢键作用形成均一形貌，随着PVA质量分数的增大，PEDOT∶PSS/PVA会发生相反转，当PVA质量分数为40%时，PEDOT∶PSS/PVA电导率为1.85 S/m，其拉伸强度达到6.83 MPa，断裂伸长率为22.89%,PEDOT∶PSS/PVA可以代替导线点亮小灯泡，且电阻随温度变化的幅度较大，对温度变化敏感。更多还原

【Abstract】 A series of conductive polymers poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)/polyvinyl alcohol(PEDOT∶PSS/PVA) with semi-interpenetrating network structure were prepared by using linear poly(3,4-ethylenedioxythiophene)/polystyrene sulfonic acid(PEDOT∶PSS) and cross-linked polyvinyl alcohol(PVA) with different mass ratios. The properties of the conductive polymers were characterized by Fourier transform infrared spectrometer(FT-IR), Raman spectrometer, X-ray diffractometer(XRD), thermogravimetric analyzer, four-probe tester and electronic universal testing machine. The results show that PVA and PEDOT∶PSS can be well compatible in a certain range, and form a uniform morphology through hydrogen bonding. With the increase of PVA mass fraction, PEDOT∶PSS/PVA will reverse. When the mass fraction of PVA is 40%, the conductivity of PEDOT∶PSS/PVA is 1. 85 S/m, the tensile strength is 16. 83 MPa, and the elongation at break is 22. 89%. PEDOT∶PSS/PVA can replace the wire to light a small bulb, and the resistance varies greatly with temperature, which is sensitive to temperature change.更多还原