PCLCC;
Center for Molecular Science;
Institute of Chemistry;
Chinese Academy of Sciences;
Beijing 100080 China Polymer Chemistry Laboratory;
Chinese Academy of Sciences and China Petro-Chemical Corporation;
Ladderlike; polyphenylsilsesquioxane; Ladderlike; 1; 4-phenylene-bridgd; polyvinylsiloxane; Fluorescence; spectra; Temperature; dependence;