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Photoluminescence of polysiloxane containing mesogenic 4-cyanobiphenyl in solution

โœ Scribed by Keiji Nagai; Kyoichi Utsunomiya; Nobuo Takamiya; Nobukatsu Nemoto; Masao Kaneko

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
512 KB
Volume
34
Category
Article
ISSN
0887-6266

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โœฆ Synopsis

Photoluminescent characteristics of polysiloxane containing pendant mesogenic 4-cyanobiphenyl (CB) and its monomeric analogues were studied in T H F solution. An excimer formation was observed, and the increase in CB content in polysiloxane induced the increase in the fluorescence intensity from the excimers. The fluorescence decays were analyzed by triexponential function. A high CB content induced small decay rates, indicating the decrease of nonradiational decay. Such suppression of the nonradiation decay in higher CB content was explained by a strong mesogenic interaction between CB groups in solution. 0 1996 John Wiley & Sons, Inc.

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