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

17 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

Keywords

carbazole
hybrid material
ladder-like
polysilsesquioxane

ASJC Scopus subject areas

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

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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}",

year = "2011",

month = mar,

doi = "10.1007/s13233-011-0304-3",

language = "English",

volume = "19",

pages = "261--265",

journal = "Macromolecular Research",

issn = "1598-5032",

publisher = "Polymer Society of Korea",

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TY - JOUR

T1 - Synthesis and characterization of ladder-like structured polysilsesquioxane with carbazole group

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

Y1 - 2011/3

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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