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Science 17 February 1995:
Vol. 267. no. 5200, pp. 994 - 996
DOI: 10.1126/science.267.5200.994
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Articles

A Conducting Polymer Film Stronger Than Aluminum

Gaoquan Shi 1, Shi Jin 1, Gi Xue 1, and Cun Li 1

1 Department of Polymer Science and Engineering, Chemistry Building, Nanjing University, Nanjing 210093, People's Republic of China

Polythiophene (Pth) was electrochemically deposited onto stainless steel substrate from freshly distilled boron fluoride-ethyl ether containing 10 millimoles of thiophene per liter. The free-standing Pth film obtained at an applied potential of 1.3 volts (versus Ag/AgCl) had a conductivity of 48.7 siemens per centimeter. Its tensile strength (1200 to 1300 kilograms per square centimeter) was greater than that of aluminium (1000 to 1100 kilograms per square centimeter). This Pth film behaves like a metal sheet and can be easily cut into various structures with a knife or a pair of scissors.

Submitted on August 15, 1994
Accepted on November 23, 1994

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Science. ISSN 0036-8075 (print), 1095-9203 (online)