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

Abstract

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 0 -azobisisobutyronitrile as an initiator with different monomer-to-monomer ratios in the feed. The monomers and copolymers were characterized by FTIR and 1 H-and 13 C-NMR spectral studies. 1 H-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 (M w and M n ) 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.

Self-Cross-Linking Characterization of Poly(fumaric-co-itaconic-co-butanediol)

“…To calculate the polymerization rate or polymer productivity and composition, monomer reactivity ratio must be known 22,23 . Reactivity ratios were among the most important parameters for the composition equation of copolymers, which could offer information such as the reactivity of monomers pairs and help estimate the copolymer composition.…”

Studying Reactivity Relationships of Copolymers N-naphthylacrylamide with (Acrylicacid and Methylacrylate)

“…Furthermore, copolymerization possesses technological significance as well. For example, it facilitates the development of a polymer product in accordance with a specific set of optimal attributes (10).…”

Copolymerazaion of N-vinyl-2-pyrrolidon with Acrylic Acid and Methylmethacrylate

“…Poly (N-vinyl-2-pyrrolidon-co-acrylic acid) PVP/AA and poly (N-vinyl-2pyrrolidon-co-methymethacrylate ) PVP/MMA is generally made by free radical polymerization .It prepared successfully in aqueous salt solution using cationic polyelectrolytes as stabilizers [1] . Moreover knowledge of copolymer"s composition is an important factor in the evaluation of its utility [2][3][4].The estimation of copolymer composition and determindation of reactivity ratios are significant for tailor-making properties.…”