Fluorescence and excitation spectra (T = 5–290 K) of nanosized silicon–organic polymersudpoly(di-n-hexylsilane) and poly(methyl(phenyl)silane) incorporated into porous silica materialsudMCM-41 and SBA-15 have been studied with varying pore diameter from 2.8 to 10 nm. The controlledudvariation of the pore diameter in the wide range (2.8–10 nm) permitted us, for the firstudtime, to investigate the optical properties of the polymers on their transition from isolatedudmacromolecules to a film. It is found that this transition depends on polymer type and occurs viaudthe formation of new spatially independent structures of the polymers not observed in the spectraudof the film, namely, via the formation of disordered and (or) ordered conformations of polymerudchains and clusters.
展开▼
