A conductive polymer

the conductive master batch

was prepared by melt blending of poly-(ethylene glycol) (PEG) with KI and poly(ethylene terephthalate) (PET).The specific resistance of the conductive polymer was about 105Ω・cm at normal temperatures

and the value of specific resistance decreased with increase of temperature.It shows the characteristics of ionic conductivity.The conductive polymer was measured by FTIR

DSC and polarized optical microscope. The PEG and PET were uncompatible in crystalline regions.In amorphous regions they were partially compatibille.In the cooling process after melt blending

KI/PEG formed a continuous phase by reason of phase separation.The conducting fiber was made by melt spinning the blends of PET with different amounts of the conductive master batch.When the content of the conductive master batch was over 10 wt% in fiber

the specific resistance of the fiber was about 106 Ω・cm and the wash-fast property was good.In this conducting fiber，the conductive master batch and PET form a co-continuous phase. The continuous banded structure formed by the conductive master batch endows the fiber with conductive property，and the PET matrix vests the fiber good mechanical properties.