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Digitale Medien

Fluorescence polarization studies of multicomponent polymer materials — anthracene labelled non-aqueous dispersions (1986)

Chiu, G. ; Winnik, M. A. ; Croucher, M. D.

Springer

Colloid & polymer science 264 (1986), S. 25-31

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Details

ISSN: 1435-1536

Schlagwort(e): Polymerblends ; fluorescence decay ; polymer colloids ; energy migration

Quelle: Springer Online Journal Archives 1860-2000

Thema: Chemie und Pharmazie , Maschinenbau

Notizen: Abstract Fluorescence polarization measurements have been carried out in hydrocarbon solvents on non-aqueous colloidal polymer dispersions labelled with anthracene [A] groups. The polymer particles are composed (dry volume) of 9% polyisobutylene and 91% poly(methyl methacrylate) [PMMA]. The A groups were introduced during particle synthesis using 9-anthrylmethyl methacrylate as a comonomer with MMA. The extent of polarization decreases with increasing A content of the PMMA phase and increasing temperature increases the steady state fluorescence polarization. These results can be explained in terms of immobile A groups which are sufficiently close that some energy transfer [A*+A→A+A*] contributes to fluorescence depolarization.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01410305

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