Choi, Seung-Sock Lee, Albert S. Lee, He Seung Baek, Kyung-Youl Choi, Dong Hoon Hwang, Seung Sang 2024-01-20T17:32:14Z 2024-01-20T17:32:14Z 2021-09-02 2011-03 1598-5032 https://pubs.kist.re.kr/handle/201004/130583 Poly(propyl carbazole silsesquioxane) (PPCSQ) with a high molecular weight (M (w) = 10,200) was synthesized by the direct hydrolysis of 9-[3-(trimethoxysilyl) propyl]-9H-carbazole with K2CO3, followed by a condensation reaction in an H2O/dimethylformamide (DMF) mixture solvent at 25 A degrees C. The obtained PPCSQ consisted of ladder-like structured siloxane bonds with carbarzole groups as the pendant group, where the distance between two carbarzole pendant groups through the siloxane backbone was 15.6 and the mean thickness of the siloxane backbone was 4.3 . This PPCSQ was thermally stable up to 450 A degrees C and the glass transition temperature was ca. 95 A degrees C, showing good film formablity by spin casting. English SPRINGER PHOTOLUMINESCENCE PROPERTY TEMPLATE SYNTHESIS POLY(PHENYLSILSESQUIOXANE) POLYCONDENSATION PHENYLSILSESQUIOXANE POLYMETHYLSILOXANE SILSESQUIOXANE POLYMERS POSS Synthesis and characterization of ladder-like structured polysilsesquioxane with carbazole group Article 10.1007/s13233-011-0304-3 1 MACROMOLECULAR RESEARCH, v.19, no.3, pp.261 - 265 MACROMOLECULAR RESEARCH 19 3 261 265 scie scopus kci ART001541204 000289168700008 2-s2.0-79955829001 Polymer Science Polymer Science Article PHOTOLUMINESCENCE PROPERTY TEMPLATE SYNTHESIS POLY(PHENYLSILSESQUIOXANE) POLYCONDENSATION PHENYLSILSESQUIOXANE POLYMETHYLSILOXANE SILSESQUIOXANE POLYMERS POSS ladder-like polysilsesquioxane carbazole hybrid material