Time-resolved fluorescence study of chain dynamics. 1. Poly(methacrylic acid) in dilute water solutions

1991 ◽  
Vol 24 (8) ◽  
pp. 2054-2059 ◽  
Author(s):  
Bohumil Bednar ◽  
Jitka Trnena ◽  
Petr Svoboda ◽  
Stefan Vajda ◽  
Vlastimil Fidler ◽  
...  
Keyword(s):  
Methacrylic Acid ◽  
Time Resolved Fluorescence ◽  
Fluorescence Study ◽  
Chain Dynamics ◽  
Time Resolved ◽  
Water Solutions

Study of polymer chain dynamics in solution by time-resolved spectrofluorometry

1989 ◽  
Vol 54 (11) ◽  
pp. 3011-3024 ◽  
Author(s):  
Vlastimil Fidler ◽  
Stefan Vajda ◽  
Zuzana Limpouchová ◽  
Jiří Dvořák ◽  
Karel Procházka ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Conformational Changes ◽  
Methacrylic Acid ◽  
Correlation Time ◽  
General Level ◽  
Polymeric Chain ◽  
Relative Molecular Mass ◽  
Chain Dynamics ◽  
Time Resolved ◽  
Covalently Bonded

The methodology of polarization time-resolved fluorometry and interpretation of its results are outlined at a general level, and the measurement on and use of facilities of the Edinburgh Instruments Model 299T apparatus are discussed in detail. The dynamics of conformational changes in chains of poly(methacrylic acid) containing covalently bonded dansyl labels are studied in aqueous solutions at various pH. It is shown that at pH > 6, the shorter effective rational correlation time τr < 2 ns corresponds to the rotation of the free dansyl label about bonds by which it is attached to the polymeric chain; at pH < 4 the longer effective rational correlation time τr = 20-26 ns corresponds to the rotation of the compact spherical formation constituted by a part of the collapsed polymeric chain in which the label is fixed and whose relative molecular mass is approx. 15 000-20 000.

Local Chain Dynamics of Adsorbed Polystyrene Studied by Time-Resolved Fluorescence Anisotropy

2001 ◽  
Vol 34 (24) ◽  
pp. 8401-8404 ◽  
Author(s):  
Sangmin Jeon ◽  
Sung Chul Bae ◽  
Steve Granick
Keyword(s):  
Fluorescence Anisotropy ◽  
Time Resolved Fluorescence ◽  
Chain Dynamics ◽  
Time Resolved

The time-resolved fluorescence study of kinetics and thermodynamics of Eu(iii) and Tb(iii) complexes with the DO2A macrocyclic ligand

2018 ◽  
Vol 42 (10) ◽  
pp. 7993-8000
Author(s):  
Filip Smrčka ◽  
Přemysl Lubal
Keyword(s):  
Fluorescence Spectroscopy ◽  
Macrocyclic Ligand ◽  
Time Resolved Fluorescence ◽  
Fluorescence Study ◽  
Time Resolved ◽  
Kinetics And Thermodynamics ◽  
Thermodynamics And Kinetics ◽  
Kinetics Of Formation ◽  
Kinetics Of

The thermodynamics and kinetics of formation/dissociation of Eu(iii) and Tb(iii) with the H2DO2A macrocyclic ligand were studied by time-resolved fluorescence spectroscopy.

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