Possible superconductivity near 300 K in oxidized polypropylene
Enikolopyan N. S., Grigorov L. N. , Smirnova S. G.
As the temperature of oxidized polypropylene films is varied near 300 K, their resistance changes abruptly, by nine orders of magnitude. The resistance drops to the zero of the measuring instrument. The films also exhibit an anomalously strong diamagnetism, which can be destroyed by a magnetic field.