Complexes of Interpenetrating Polymer Networks Exhibiting Synergistic Effect of Ionic and Electronic Conductivities

Abstract

Abstract: Interpenetrating polymer network was synthesized via reaction of castor oil, poly(ethylene glycol), toluene 2,4-diisocyanante and 2-vinyl pyridine in the presence of redox initiator and dibutyl tin dilaurate as the catalyst. Both yield and gel content of most IPNs are higher than 93%. The IPN was characterized by IR spectrum and gel content. The IPM obtained exhibits good mechanical properties, which are related with its crystallinity. When the IPN is complexed with LiClO₄, it exhibits an ion-conductivity, whereas when it is complexed with TCNE or TCNQ, it shows an electronic conductivity. When the IPN is complexed with both LiClO₄ and TCNE or TCNQ, it shows a mixed conductivity with a synergistic effect, i.e. the mixed conductivity is higher than either electronic conductivity or ionic conductivity. The mixed conductivity can reach 10^-3—10^-2S/cm at room temperature.

Key words: Interpenetrating polymer networks, Ionic conductivity, Electronic conductivity, Castor oil polyurethane, Poly(vinyl pyridine)

CLC Number:

O631

TrendMD:

XIE Hong-Quan, HUANG Xu-Dong, GUO Jun-Shi . Complexes of Interpenetrating Polymer Networks Exhibiting Synergistic Effect of Ionic and Electronic Conductivities[J]. Chem. J. Chinese Universities, 2004, 25(5): 957.

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Complexes of Interpenetrating Polymer Networks Exhibiting Synergistic Effect of Ionic and Electronic Conductivities

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