Isothermal and non-isothermal polymerization of methyl methacrylate in presence of multiple initiators

Kinetic modeling of bulk free-radical polymerization of methyl methacrylate

“…Free-radical bulk polymerization is a versatile process because it can be carried out on many monomers and at a wide range of temperatures. 1 It is well-known that the free-radical bulk polymerization of vinyl monomers (derivatives of acrylic and methacrylic acids, vinyl acetate, styrene, ethylene, and so on) is characterized by the autoacceleration phenomenon. The free-radical polymerization of these monomers can be explained by the classical theory up to a certain monomer conversion.…”

“…More recently, a simple semi-empirical model relating the degree of conversion and the polymerization rate to the time and temperature was developed. 1 The model parameters were calculated from isothermal differential scanning calorimetry (DSC) experiments and then successfully applied to predict monomer conversion in non-isothermal experiments. Sangwai et al 23 used an empirical model that involves only monomer conversion and temperature, and accounts for the gel and the glass effect to describe the polymerization of MMA in a rheometer-reactor assembly in isothermal and non-isothermal conditions.…”

Electrochemical Deposition and Investigation of Poly-9,10-Phenanthrenequinone Layer

“…Polymers deposited on a substrate surface can possess various properties including advanced electrical conductivity [1,7] or insulating properties [8], redox mediating capabilities [9], interesting topographic features [10], specific adhesive and/or binding properties [11], etc. The modification of electrically conducting surfaces (e.g., electrodes) with polymers possessing a particular function can be performed by many well-established methods, for example by dissolving the polymer in a solvent and casting of this solution on electrode surface [3], polymerization using various chemical initiators [12] or altered environment conditions [13], electrochemical polymerization directly onto the electrode surface [2,14,15]. Polymer-modified electrodes can be composed of more than one functional layer, e.g., they can be multilayered [16,17], or additionally modified with some functionalized layers that can be formed during or after formation of initial polymer layer [18], etc.…”

Electrochemical Formation and Evaluation of Poly-9,10-Phenanthrenequinone of Layer

“…The modification of electrically conducting surfaces (e.g. electrodes) with polymers possessing a particular function can be performed by many wellestablished methods, for example by dissolving the polymer in a solvent and casting of this solution on electrode surface [3], polymerization using various chemical initiators [ 12 ] or altered environment conditions [13], electrochemical polymerization directly onto the electrode surface [2,14,15]. Polymermodified electrodes can be composed of more than one functional layer, e.g.…”