Synthesis and characterization of UV-curable ladder-like polysilsesquioxane

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

doi:10.1002/pola.24942

Synthesis and characterization of UV-curable ladder-like polysilsesquioxane

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

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

79 Citations (Scopus)

Abstract

Various ladder-like structured poly(phenyl-co-methacryl silsesquioxane)s (LPMSQ)s with high molecular weight (M_w = 10,000 ∼ 40,000) were synthesized by direct hydrolysis and polymerization in the presence of base catalyst at 25 °C. Synthesized LPMSQs mainly showed ladder-like structure and photo-cure reaction by 100 mW/cm² (360 nm) for 10 s without any photo-cure initiators. Chemical composition and structural analysis of the obtained LPMSQs were characterized using ¹H NMR, ²⁹Si NMR, Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), and X-ray diffraction (XRD). Physical properties of LPMSQs before and after photcuring were analyzed by Nanoindentation. Surface modulus increased to 8GPa and hardness of thin films increased from 100 to 400 MPa.

Original language	English
Pages (from-to)	5012-5018
Number of pages	7
Journal	Journal of Polymer Science, Part A: Polymer Chemistry
Volume	49
Issue number	23
DOIs	https://doi.org/10.1002/pola.24942
Publication status	Published - 2011 Dec 1

Keywords

UV-curable material
materials science
organic-inorganic hybrid composite
organic-inorganic hybrid material
photochemistry
silsesquioxane

ASJC Scopus subject areas

Polymers and Plastics
Organic Chemistry
Materials Chemistry

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title = "Synthesis and characterization of UV-curable ladder-like polysilsesquioxane",

abstract = "Various ladder-like structured poly(phenyl-co-methacryl silsesquioxane)s (LPMSQ)s with high molecular weight (Mw = 10,000 ∼ 40,000) were synthesized by direct hydrolysis and polymerization in the presence of base catalyst at 25 °C. Synthesized LPMSQs mainly showed ladder-like structure and photo-cure reaction by 100 mW/cm2 (360 nm) for 10 s without any photo-cure initiators. Chemical composition and structural analysis of the obtained LPMSQs were characterized using 1H NMR, 29Si NMR, Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), and X-ray diffraction (XRD). Physical properties of LPMSQs before and after photcuring were analyzed by Nanoindentation. Surface modulus increased to 8GPa and hardness of thin films increased from 100 to 400 MPa.",

keywords = "UV-curable material, materials science, organic-inorganic hybrid composite, organic-inorganic hybrid material, photochemistry, silsesquioxane",

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

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doi = "10.1002/pola.24942",

language = "English",

volume = "49",

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T1 - Synthesis and characterization of UV-curable ladder-like polysilsesquioxane

AU - Choi, Seung Sock

AU - Lee, Albert S.

AU - Lee, He Seung

AU - Jeon, Hyeon Yeol

AU - Baek, Kyung Youl

AU - Choi, Dong Hoon

AU - Hwang, Seung Sang

PY - 2011/12/1

Y1 - 2011/12/1

N2 - Various ladder-like structured poly(phenyl-co-methacryl silsesquioxane)s (LPMSQ)s with high molecular weight (Mw = 10,000 ∼ 40,000) were synthesized by direct hydrolysis and polymerization in the presence of base catalyst at 25 °C. Synthesized LPMSQs mainly showed ladder-like structure and photo-cure reaction by 100 mW/cm2 (360 nm) for 10 s without any photo-cure initiators. Chemical composition and structural analysis of the obtained LPMSQs were characterized using 1H NMR, 29Si NMR, Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), and X-ray diffraction (XRD). Physical properties of LPMSQs before and after photcuring were analyzed by Nanoindentation. Surface modulus increased to 8GPa and hardness of thin films increased from 100 to 400 MPa.

AB - Various ladder-like structured poly(phenyl-co-methacryl silsesquioxane)s (LPMSQ)s with high molecular weight (Mw = 10,000 ∼ 40,000) were synthesized by direct hydrolysis and polymerization in the presence of base catalyst at 25 °C. Synthesized LPMSQs mainly showed ladder-like structure and photo-cure reaction by 100 mW/cm2 (360 nm) for 10 s without any photo-cure initiators. Chemical composition and structural analysis of the obtained LPMSQs were characterized using 1H NMR, 29Si NMR, Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), and X-ray diffraction (XRD). Physical properties of LPMSQs before and after photcuring were analyzed by Nanoindentation. Surface modulus increased to 8GPa and hardness of thin films increased from 100 to 400 MPa.

KW - UV-curable material

KW - materials science

KW - organic-inorganic hybrid composite

KW - organic-inorganic hybrid material

KW - photochemistry

KW - silsesquioxane

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Synthesis and characterization of UV-curable ladder-like polysilsesquioxane

Abstract

Keywords

ASJC Scopus subject areas

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