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Indications of the excluded volume effect in the core of a polymer colloid particle

✍ Scribed by Ö. Pekcan

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
306 KB
Volume
43
Category
Article
ISSN
0323-7648

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✦ Synopsis

The phosphorescence intensity ofnaphthalene groups labelled to the poly(methy1 methacrylate) phase of a colloid particle is studied in dependence of temperature. The peculiar structure in the phosphorescence spectra around -126 OC is attributed to the theta point conditions of the colloid dispersion.The results are interpreted in terms of the excluded volume effect.

Zum Effekt des ausgeschlossenen Volumens im Inneren eines polymeren Kolloidteilchens

Die Phosphoreszenzintensitat von Naphthalengruppen, mit denen die Poly(methylmethacry1at)-Phase eines Kolloidteilchens markiert wurde, wird in Abhangigkeit von der Temperatur untersucht. Die besondere Struktur der Phosphoreszenzspektren bei etwa -126 "C wird mit den Thetapunktbedingungen in der kolloidalen Dispersion in Zusammenhang gebracht. Die Ergebnisse werden im Hinblick auf Effekte des ausgeschlossenen Volumens interpretiert.

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