Thermosoftening phenyl siloxane glasses prepared via sol concentration

Thermosoftening phenyl polysiloxane glasses have been prepared by concentration of the corresponding sol above the melting temperature of the resultant materials, which we call the ‘sol concentration method’ (SCM). Because the glass melt is directly obtained without a gelation process, a remarkable...

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Bibliographic Details
Published inJournal of non-crystalline solids Vol. 353; no. 44; pp. 4162 - 4169
Main Authors Kuniyoshi, Minoru, Takahashi, Masahide, Tokuda, Yomei, Yoko, Toshinobu
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 15.11.2007
Elsevier
Subjects
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
Materials science
Materials synthesis; materials processing
Organic–inorganic hybrids
Physics
Organic–inorganic hybrids
65.60.+a
81.07.Pr
81.20.Fw
61.43.Fs
Hydrolysis
Transparency
61.43.Fs; 65.60.+a; 81.07.Pr; 81.20.Fw
Scanning capacitance microscopy
Ultraviolet spectra
Glass
Operating mode
Organic siloxane
Condensation polymerization
Organic-inorganic hybrids
Sol-gel process
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Summary:Thermosoftening phenyl polysiloxane glasses have been prepared by concentration of the corresponding sol above the melting temperature of the resultant materials, which we call the ‘sol concentration method’ (SCM). Because the glass melt is directly obtained without a gelation process, a remarkable shortening of the process time and suppression of crack formation in the sol–gel transition region have been realized. That is the whole process time of the SCM (about 24 h) is much shorter than that of the conventional sol–gel process (about 10 days). Thermosoftening phenyl polysiloxane glasses with high transparency in the UV region were obtained by the SCM.
ISSN:0022-3093
1873-4812
DOI:10.1016/j.jnoncrysol.2007.06.044