Kinetic and Copolymer Composition Investigations of the Free Radical Copolymerization of 1‐Octene with Glycidyl Methacrylate

Abstract

Kinetic and copolymer composition investigations of the free radical copolymerization of 1‐octene with glycidyl methacrylate are reported. The chemical structure of the obtained copolymers is elucidated by 1H, 13C, heteronuclear single quantum coherence nuclear magnetic resonance (NMR) and infrared spectroscopies. 1H NMR measurements indicate that a maximum statistical incorporation of 1‐octene in the copolymer chain of 32 mol% is obtained when 90 mol% of this comonomer is used in the initial monomer feed of the copolymerization reaction. Furthermore, the reactivity ratios of this comonomer system are estimated using the obtained experimental data, which are fitted to the integral form of the copolymerization equation utilizing a nonlinear least squares approach. To the best of knowledge, this is the first report on the reactivity ratios of this specific comonomer system. To evaluate the potential of the obtained materials as dispersants, the effect of the polymer concentration on the dispersion of copper nanopowders in organic solvents is studied for a copolymer with a 1‐octene composition of 25 mol%.

Semiautomated Parallel RAFT Copolymerization of Isoprene with Glycidyl Methacrylate

“…6 In the present work the estimation of the reactivity ratios was made at low to medium conversions at a temperature of 115 °C using the integrated form of the copolymerization equation. 5,23 The methodology used is based on obtaining the pair of reactivity ratio values that better fit the experimental values of conversion and the corresponding molar composition of the copolymer, using a weighted least-squares criterion. The optimization is performed by a visually aided technique mapping a wide range of pairs of possible values for the reactivity ratios.…”

“…In the case of the direct free radical copolymerization of olefins with polar comonomers, − some efforts have been made to establish copolymerization procedures that involve mild experimental conditions in contrast to the synthesis of some current commercial polar polyolefins such as ethylene-vinyl acetate (EVA), ethylene-acrylic acid, and ethylene methacrylic acid copolymers, to name a few, that are produced at high pressure and temperature conditions . Monteil et al reported results of the free radical copolymerization of ethylene and vinyl acetate under 7 MPa and 70 °C in organic solvents.…”

“…Chen et al reported a RAFT/MADIX method to copolymerize ethylene with N -vinylpyrrolidone, N -vinyl caprolactam, 2-hydroxyethyl vinyl ether, vinyl trifluoroacetate, and vinyl acetate with different proportions of a polar monomer. Venkatesh et al reported on the RAFT copolymerization of 1-octene with butyl acrylate and methyl methacrylate, while Rosales-Guzmán et al reported the copolymerization of 1-octene with glycidyl methacrylate. Another alternative to produce polyolefins involves the hydrogenation of polymer precursors such as polyisoprene (PIP) and polybutadiene (PB). − This route becomes in particular important when the polymer precursor contains polar monomers in its molecular structure, and hydrogenation would lead to a polyolefin with polar properties.…”

A modular low-cost automated synthesis machine demonstrated by ring-opening metathesis polymerization

“…Current research has focused on developing automated methods for synthesizing and characterizing libraries of compounds. 2–4 This has significantly accelerated the discovery of new materials for various applications, including energy storage and conversion, 5–8 polymers, 9–15 catalysis, 16–20 and drug discovery. 21–24 Several of these discoveries have relied on advanced statistical methods for experimental design e.g.…”

Living in the Fast Lane—High Throughput Controlled/Living Radical Polymerization

“…17 A number of excellent reviews provide further details on the use of HTP and combinatorial methodologies with stepgrowth polymerization. [4][5][6]25,26 HTP methodologies have also been applied to free radical polymerization, 27,28 including emulsion polymerization, 29 thereby increasing the diversity of materials that can be studied. The versatility of radical polymerization has been exploited to map out the effect of material properties, such as wettability, topography, elastic modulus, and surface chemistry, from over 450 polymer surfaces on the growth of human pluripotent stem cells.…”