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Solubility and diffusion in latex films formed from high glass transition temperature particles
Author(s) -
Uğur Ş.,
Pekcan Ö.
Publication year - 1998
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19981121)70:8<1493::aid-app8>3.0.co;2-x
Subject(s) - glass transition , pyrene , solubility , dissolution , desorption , polymer , materials science , annealing (glass) , polymer chemistry , diffusion , methyl methacrylate , hildebrand solubility parameter , chemical engineering , analytical chemistry (journal) , chemistry , copolymer , organic chemistry , thermodynamics , composite material , adsorption , physics , engineering
In situ steady‐state fluorescence measurements were used to study the dissolution of polymer films. These films were formed from pyrene labeled poly(methyl methacrylate) (PMMA) latex particles that were sterically stabilized by polyisobutylene. Annealing was performed above the glass transition temperature at 180°C at 1‐h time intervals for film formation. Desorption of pyrene labeled PMMA chains was monitored in real time by the change of pyrene fluorescence intensity. Dissolution experiments were performed in various solvents with different solubility parameters, δ, at room temperature. Diffusion coefficients, D , in various solvents were measured and found to be around 10 −10 cm 2 /s. A strong relation between D and δ was observed. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 70: 1493–1502, 1998