Real-time monitoring of swelling and dissolution of poly(methyl methacrylate) discs using fluorescence probes

Ö Pekcan; Ş Uǧur; Y. Yilmaz

doi:10.1016/S0032-3861(96)00769-0

Real-time monitoring of swelling and dissolution of poly(methyl methacrylate) discs using fluorescence probes

Ö Pekcan^*, Ş Uǧur, Y. Yilmaz

^*Corresponding author for this work

Department of Physics Engineering

Istanbul Technical University

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

43 Citations (Scopus)

Abstract

A new technique, based on steady state fluorescence measurements is introduced for studying swelling and dissolution of polymer discs. These discs are formed by free radical polymerization of methyl methacrylate (MMA). Pyrene (Py) was introduced as a fluorescence probe during polymerization. Swelling and dissolution of disc shape poly(methyl methacrylate) (PMMA) samples in chloroform-heptane mixtures were monitored in real-time by the Py fluorescence intensity change. The effects of solvent quality and agitation (stirring) on film dissolution were studied. Sorption and desorption coefficients of solvent and Py molecules were measured respectively during dissolution of films, and found to be between 10^-7 and 10^-6cm²s^-1.

Original language	English
Pages (from-to)	2183-2189
Number of pages	7
Journal	Polymer
Volume	38
Issue number	9
DOIs	https://doi.org/10.1016/S0032-3861(96)00769-0
Publication status	Published - Apr 1997

Keywords

Diffusion
Dissolution
Fluorescence
Gel
Relaxation
Swelling

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10.1016/S0032-3861(96)00769-0

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title = "Real-time monitoring of swelling and dissolution of poly(methyl methacrylate) discs using fluorescence probes",

abstract = "A new technique, based on steady state fluorescence measurements is introduced for studying swelling and dissolution of polymer discs. These discs are formed by free radical polymerization of methyl methacrylate (MMA). Pyrene (Py) was introduced as a fluorescence probe during polymerization. Swelling and dissolution of disc shape poly(methyl methacrylate) (PMMA) samples in chloroform-heptane mixtures were monitored in real-time by the Py fluorescence intensity change. The effects of solvent quality and agitation (stirring) on film dissolution were studied. Sorption and desorption coefficients of solvent and Py molecules were measured respectively during dissolution of films, and found to be between 10-7 and 10-6cm2s-1.",

keywords = "Diffusion, Dissolution, Fluorescence, Gel, Relaxation, Swelling",

author = "{\"O} Pekcan and {\c S} Uǧur and Y. Yilmaz",

year = "1997",

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T1 - Real-time monitoring of swelling and dissolution of poly(methyl methacrylate) discs using fluorescence probes

AU - Pekcan, Ö

AU - Uǧur, Ş

AU - Yilmaz, Y.

PY - 1997/4

Y1 - 1997/4

N2 - A new technique, based on steady state fluorescence measurements is introduced for studying swelling and dissolution of polymer discs. These discs are formed by free radical polymerization of methyl methacrylate (MMA). Pyrene (Py) was introduced as a fluorescence probe during polymerization. Swelling and dissolution of disc shape poly(methyl methacrylate) (PMMA) samples in chloroform-heptane mixtures were monitored in real-time by the Py fluorescence intensity change. The effects of solvent quality and agitation (stirring) on film dissolution were studied. Sorption and desorption coefficients of solvent and Py molecules were measured respectively during dissolution of films, and found to be between 10-7 and 10-6cm2s-1.

AB - A new technique, based on steady state fluorescence measurements is introduced for studying swelling and dissolution of polymer discs. These discs are formed by free radical polymerization of methyl methacrylate (MMA). Pyrene (Py) was introduced as a fluorescence probe during polymerization. Swelling and dissolution of disc shape poly(methyl methacrylate) (PMMA) samples in chloroform-heptane mixtures were monitored in real-time by the Py fluorescence intensity change. The effects of solvent quality and agitation (stirring) on film dissolution were studied. Sorption and desorption coefficients of solvent and Py molecules were measured respectively during dissolution of films, and found to be between 10-7 and 10-6cm2s-1.

KW - Diffusion

KW - Dissolution

KW - Fluorescence

KW - Gel

KW - Relaxation

KW - Swelling

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U2 - 10.1016/S0032-3861(96)00769-0

DO - 10.1016/S0032-3861(96)00769-0

M3 - Article

AN - SCOPUS:0031118802

SN - 0032-3861

VL - 38

SP - 2183

EP - 2189

JO - Polymer

JF - Polymer

IS - 9

ER -

Real-time monitoring of swelling and dissolution of poly(methyl methacrylate) discs using fluorescence probes

Abstract

Keywords

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