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Fluorescence studies of the kinetics of processes in polymers
Author(s) -
Morawetz Herbert
Publication year - 1995
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19950900118
Subject(s) - counterion , ionomer , polymer , methacrylic acid , fluorescence , kinetics , poly(methacrylic acid) , diffusion , polymer chemistry , chemistry , materials science , chemical engineering , copolymer , thermodynamics , organic chemistry , ion , physics , quantum mechanics , engineering
Using a stopped‐flow apparatus with fluorescence detection we followed the expansion of poly(methacrylic acid) after a pH jump, the enhancement of fluorescence of Auramine O after association with poly(methacrylic acid), the counterion exchange in ionomer solutions and the dependence of the rate of inter‐polymer reactions on the polymer chainlength. Fluorescence was also used to follow the unfolding of collapsed chains in bulk polymers and counterion diffusion in bulk ionomers.