Fast transient fluorescence technique for monitoring swelling of poly(methyl methacrylate) gels

Ö Pekcan; D. Kaya; M. Erdoǧan

doi:10.1016/S0032-3861(99)00721-1

Fast transient fluorescence technique for monitoring swelling of poly(methyl methacrylate) gels

Ö Pekcan^*, D. Kaya, M. Erdoǧan

^*Corresponding author for this work

Department of Physics Engineering

Istanbul Technical University

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

20 Citations (Scopus)

Abstract

A fast transient fluorescence technique (FTRF) which uses the Strobe Master System (SMS), is introduced for studying swelling of a cylindrical poly(methyl methacrylate) (PMMA) gel. PMMA gel was prepared by free radical copolymerization of methyl (methacrylate) (MMA) and ethylene glycol dimethacrylate (EGDM). Pyrene (P(y)) was introduced as a fluorescence probe during polymerization and lifetimes of P(y) were measured during in situ swelling process. Chloroform was used as a swelling agent. An equation is derived for low quenching efficiencies to interpret the behavior of mean lifetimes (τ) during swelling. It was observed that (τ) values decreased as swelling proceeded. The Li-Tanaka equation was used to determine the cooperative, D(c) and mutual D(m) diffusion coefficients, which were found to be around 10^-5 and 10^-7 cm² ns^-1, respectively. (C) 2000 Elsevier Science Ltd. All rights reserved.

Original language	English
Pages (from-to)	4915-4921
Number of pages	7
Journal	Polymer
Volume	41
Issue number	13
DOIs	https://doi.org/10.1016/S0032-3861(99)00721-1
Publication status	Published - Jun 2000

Keywords

Fast transient fluorescence technique
Poly(methyl metacrylate)gels
Swelling

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10.1016/S0032-3861(99)00721-1

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title = "Fast transient fluorescence technique for monitoring swelling of poly(methyl methacrylate) gels",

abstract = "A fast transient fluorescence technique (FTRF) which uses the Strobe Master System (SMS), is introduced for studying swelling of a cylindrical poly(methyl methacrylate) (PMMA) gel. PMMA gel was prepared by free radical copolymerization of methyl (methacrylate) (MMA) and ethylene glycol dimethacrylate (EGDM). Pyrene (P(y)) was introduced as a fluorescence probe during polymerization and lifetimes of P(y) were measured during in situ swelling process. Chloroform was used as a swelling agent. An equation is derived for low quenching efficiencies to interpret the behavior of mean lifetimes (τ) during swelling. It was observed that (τ) values decreased as swelling proceeded. The Li-Tanaka equation was used to determine the cooperative, D(c) and mutual D(m) diffusion coefficients, which were found to be around 10-5 and 10-7 cm2 ns-1, respectively. (C) 2000 Elsevier Science Ltd. All rights reserved.",

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T1 - Fast transient fluorescence technique for monitoring swelling of poly(methyl methacrylate) gels

AU - Pekcan, Ö

AU - Kaya, D.

AU - Erdoǧan, M.

PY - 2000/6

Y1 - 2000/6

N2 - A fast transient fluorescence technique (FTRF) which uses the Strobe Master System (SMS), is introduced for studying swelling of a cylindrical poly(methyl methacrylate) (PMMA) gel. PMMA gel was prepared by free radical copolymerization of methyl (methacrylate) (MMA) and ethylene glycol dimethacrylate (EGDM). Pyrene (P(y)) was introduced as a fluorescence probe during polymerization and lifetimes of P(y) were measured during in situ swelling process. Chloroform was used as a swelling agent. An equation is derived for low quenching efficiencies to interpret the behavior of mean lifetimes (τ) during swelling. It was observed that (τ) values decreased as swelling proceeded. The Li-Tanaka equation was used to determine the cooperative, D(c) and mutual D(m) diffusion coefficients, which were found to be around 10-5 and 10-7 cm2 ns-1, respectively. (C) 2000 Elsevier Science Ltd. All rights reserved.

AB - A fast transient fluorescence technique (FTRF) which uses the Strobe Master System (SMS), is introduced for studying swelling of a cylindrical poly(methyl methacrylate) (PMMA) gel. PMMA gel was prepared by free radical copolymerization of methyl (methacrylate) (MMA) and ethylene glycol dimethacrylate (EGDM). Pyrene (P(y)) was introduced as a fluorescence probe during polymerization and lifetimes of P(y) were measured during in situ swelling process. Chloroform was used as a swelling agent. An equation is derived for low quenching efficiencies to interpret the behavior of mean lifetimes (τ) during swelling. It was observed that (τ) values decreased as swelling proceeded. The Li-Tanaka equation was used to determine the cooperative, D(c) and mutual D(m) diffusion coefficients, which were found to be around 10-5 and 10-7 cm2 ns-1, respectively. (C) 2000 Elsevier Science Ltd. All rights reserved.

KW - Fast transient fluorescence technique

KW - Poly(methyl metacrylate)gels

KW - Swelling

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DO - 10.1016/S0032-3861(99)00721-1

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SN - 0032-3861

VL - 41

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JO - Polymer

JF - Polymer

IS - 13

ER -

Fast transient fluorescence technique for monitoring swelling of poly(methyl methacrylate) gels

Abstract

Keywords

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