Synthesis and characterization of novel fluorine-containing methacrylate copolymers: Reactivity ratios, thermal properties, and antimicrobial activity

The free-radical-initiated copolymerization of 2-(4-acetylphenoxy)-2-oxoethyl-2-methylacrylate (AOEMA) and 2-(4-benzoylphenoxy)-2-oxoethyl-2-methylacrylate (BOEMA) with 2-[(4-fluorophenyoxy]-2-oxoethyl-2-methylacrylate (FPEMA) were carried out in 1,4-dioxane solution at 65°C using 2,2'-azobisis...

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Bibliographic Details
Published in:Journal of applied polymer science 2009-12, Vol.114 (6), p.3351-3359
Main Authors: Erol, Ibrahim, Sen, Ozkan, Dedelioglu, Ayse, Cifci, Cemal
Format: Article
Language:English
Subjects:
Applied sciences
biological activity
Copolymerization
Copolymers
Exact sciences and technology
fluorine
Manganese
methacrylate
Molecular weight
Moles
monomer reactivity ratios
Monomers
Organic polymers
Physicochemistry of polymers
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
Reproduction
Spectra
Thermal properties
thermal stability
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Summary:The free-radical-initiated copolymerization of 2-(4-acetylphenoxy)-2-oxoethyl-2-methylacrylate (AOEMA) and 2-(4-benzoylphenoxy)-2-oxoethyl-2-methylacrylate (BOEMA) with 2-[(4-fluorophenyoxy]-2-oxoethyl-2-methylacrylate (FPEMA) were carried out in 1,4-dioxane solution at 65°C using 2,2'-azobisisobutyronitrile as an initiator with different monomer-to-monomer ratios in the feed. The monomers and copolymers were characterized by FTIR and ¹H- and ¹³C-NMR spectral studies. ¹H-NMR analysis was used to determine the molar fractions of AOEMA, BOEMA, and FPEMA in the copolymers. The reactivity ratios of the monomers were determined by the application of Fineman-Ross and Kelen-Tudos methods. The analysis of reactivity ratios revealed that BOEMA and AOEMA are less reactive than FPEMA, and copolymers formed are statistically in nature. The molecular weights (Mw and Mn) and polydispersity index of the polymers were determined using gel permeation chromatography. Thermogravimetric analysis of the polymers reveals that the thermal stability of the copolymers increases with an increase in the mole fraction of FPEMA in the copolymers. Glass transition temperatures of the copolymers were found to decrease with an increase in the mole fraction of FPEMA in the copolymers.
ISSN:0021-8995
1097-4628
1097-4628
DOI:10.1002/app.30835