Study of the semidilute solutions of poly(N,N-dimethylacrylamide) by fluorescence and its implications to the kinetics of coil-to-globule transitions
Article Abstract:
The dynamics of poly(N,N-dimethylacrylamide) chains randomly labeled with pyrene (Py-PDMA) were monitored by steady-state fluorescence in the semidilute medium of naked PDMA in acetone and DMF. Increasing polymer concentration led to a decrease in the mobility of the chromophore attached to PDMA and was characterized by the number of monomers occupying the volume probed by the excited chromophore or fluorescence blob.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Time-resolved and steady-state fluorescence studies of hydrophobically modified water-soluble polymers
Article Abstract:
A comprehensive study of the photophysical behavior of poly(acrylic acids) randomly labeled with pyrene employing steady-state and time resolved fluorescence spectroscopy is reported. Time-resolved fluorescence spectroscopy is found to be a powerful technique in the interpretation of the photophysical behavior of these pyrene-labeled PAA polymers.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2003
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Maleated ethylene-propylene random copolymers: determination of the microstructure and association level by fluorescence spectroscopy
Article Abstract:
The experiments were conducted using fluorescence spectroscopy to study the microstructure of ethylene-propylene copolymers. The results show that 70% of all pyrene groups were located at small distances from one another and form excimer readily and in apolar hexane, 87% of all pyrene groups are involved into loose pyrene aggregates.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2001
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