In situ fluorescence experiments for real-time monitoring of annealed high-T latex film dissolution

O. Pekcan; M. Canpolat; D. Kaya

doi:10.1002/(SICI)1097-4628(19960620)60:12<2105::AID-APP7>3.0.CO;2-Q

In situ fluorescence experiments for real-time monitoring of annealed high-T latex film dissolution

O. Pekcan^*, M. Canpolat, D. Kaya

^*Corresponding author for this work

Department of Physics Engineering

Istanbul Technical University

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

A new technique, based on steady-state fluorescence measurements, is introduced for studying dissolution of polymer films. These films are formed from naphthalene and pyrene labeled poly(methyl methacrylate) (PMMA) latex particles, sterically stabilized by polyisobutylene. Diffusion of solvent (chloroform) into the annealed latex film was followed by desorption of polymer chains. Annealing was performed above T_g at various temperatures for 30-min time intervals. Desorption of pyrene labeled PMMA chains was monitored in real time by the pyrene fluorescence intensity change. Desorption coefficients were found to be between 1 and 4 × 10^-10 cm²/s and two different dissolution mechanisms were detected.

Original language	English
Pages (from-to)	2105-2112
Number of pages	8
Journal	Journal of Applied Polymer Science
Volume	60
Issue number	12
DOIs	https://doi.org/10.1002/(SICI)1097-4628(19960620)60:12<2105::AID-APP7>3.0.CO;2-Q
Publication status	Published - 1 Jan 1996

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10.1002/(SICI)1097-4628(19960620)60:12<2105::AID-APP7>3.0.CO;2-Q

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title = "In situ fluorescence experiments for real-time monitoring of annealed high-T latex film dissolution",

abstract = "A new technique, based on steady-state fluorescence measurements, is introduced for studying dissolution of polymer films. These films are formed from naphthalene and pyrene labeled poly(methyl methacrylate) (PMMA) latex particles, sterically stabilized by polyisobutylene. Diffusion of solvent (chloroform) into the annealed latex film was followed by desorption of polymer chains. Annealing was performed above Tg at various temperatures for 30-min time intervals. Desorption of pyrene labeled PMMA chains was monitored in real time by the pyrene fluorescence intensity change. Desorption coefficients were found to be between 1 and 4 × 10-10 cm2/s and two different dissolution mechanisms were detected.",

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N2 - A new technique, based on steady-state fluorescence measurements, is introduced for studying dissolution of polymer films. These films are formed from naphthalene and pyrene labeled poly(methyl methacrylate) (PMMA) latex particles, sterically stabilized by polyisobutylene. Diffusion of solvent (chloroform) into the annealed latex film was followed by desorption of polymer chains. Annealing was performed above Tg at various temperatures for 30-min time intervals. Desorption of pyrene labeled PMMA chains was monitored in real time by the pyrene fluorescence intensity change. Desorption coefficients were found to be between 1 and 4 × 10-10 cm2/s and two different dissolution mechanisms were detected.

AB - A new technique, based on steady-state fluorescence measurements, is introduced for studying dissolution of polymer films. These films are formed from naphthalene and pyrene labeled poly(methyl methacrylate) (PMMA) latex particles, sterically stabilized by polyisobutylene. Diffusion of solvent (chloroform) into the annealed latex film was followed by desorption of polymer chains. Annealing was performed above Tg at various temperatures for 30-min time intervals. Desorption of pyrene labeled PMMA chains was monitored in real time by the pyrene fluorescence intensity change. Desorption coefficients were found to be between 1 and 4 × 10-10 cm2/s and two different dissolution mechanisms were detected.

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In situ fluorescence experiments for real-time monitoring of annealed high-T latex film dissolution

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