A new type of crown functionalized polysiloxane, in which the crown moieties were incorporated into main chain, and its platinum complex were synthesized. The p
Metal foils for Raman scattering were prepared by HNO<sub>3</sub> etching method. These foils werefound to exhibit a strong SERS effect and excellent thermal st
An insulate to metal transition was investigated based on the measurements of the dependence of the conductivity, activation energy on the protonation state of