Synthesis and characterization of ladder-like structured polysilsesquioxane with carbazole group

Seung Sock Choi; Albert S. Lee; He Seung Lee; Kyung Youl Baek; Dong Hoon Choi; Seung Sang Hwang

doi:10.1007/s13233-011-0304-3

Synthesis and characterization of ladder-like structured polysilsesquioxane with carbazole group

Seung Sock Choi, Albert S. Lee, He Seung Lee, Kyung Youl Baek, Dong Hoon Choi, Seung Sang Hwang

Department of Chemistry

Research output: Contribution to journal › Article

16 Citations (Scopus)

Abstract

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 °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 Å and the mean thickness of the siloxane backbone was 4.3 Å. This PPCSQ was thermally stable up to 450 °C and the glass transition temperature was ca. 95 °C, showing good film formablity by spin casting.

Original language	English
Pages (from-to)	261-265
Number of pages	5
Journal	Macromolecular Research
Volume	19
Issue number	3
DOIs	https://doi.org/10.1007/s13233-011-0304-3
Publication status	Published - 2011 Mar 1

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Keywords

carbazole
hybrid material
ladder-like
polysilsesquioxane

ASJC Scopus subject areas

Organic Chemistry
Materials Chemistry
Polymers and Plastics
Chemical Engineering(all)

Cite this

Choi, S. S., Lee, A. S., Lee, H. S., Baek, K. Y., Choi, D. H., & Hwang, S. S. (2011). Synthesis and characterization of ladder-like structured polysilsesquioxane with carbazole group. Macromolecular Research, 19(3), 261-265. https://doi.org/10.1007/s13233-011-0304-3

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title = "Synthesis and characterization of ladder-like structured polysilsesquioxane with carbazole group",

abstract = "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 °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 {\AA} and the mean thickness of the siloxane backbone was 4.3 {\AA}. This PPCSQ was thermally stable up to 450 °C and the glass transition temperature was ca. 95 °C, showing good film formablity by spin casting.",

keywords = "carbazole, hybrid material, ladder-like, polysilsesquioxane",

author = "Choi, {Seung Sock} and Lee, {Albert S.} and Lee, {He Seung} and Baek, {Kyung Youl} and Choi, {Dong Hoon} and Hwang, {Seung Sang}",

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AU - Choi, Seung Sock

AU - Lee, Albert S.

AU - Lee, He Seung

AU - Baek, Kyung Youl

AU - Choi, Dong Hoon

AU - Hwang, Seung Sang

PY - 2011/3/1

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N2 - 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 °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 Å and the mean thickness of the siloxane backbone was 4.3 Å. This PPCSQ was thermally stable up to 450 °C and the glass transition temperature was ca. 95 °C, showing good film formablity by spin casting.

AB - 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 °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 Å and the mean thickness of the siloxane backbone was 4.3 Å. This PPCSQ was thermally stable up to 450 °C and the glass transition temperature was ca. 95 °C, showing good film formablity by spin casting.

KW - carbazole

KW - hybrid material

KW - ladder-like

KW - polysilsesquioxane

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10.1007/s13233-011-0304-3