The autowave modes of solid phase polymerization of metal-containing monomers in two- and three-dimensional fiberglass-filled matrices

Abstract

The phenomenon of autowave (frontal) solid phase polymerization of metal-containing monomers based on metal-acrylamide complexes is considered. The comparison of the features of autowave processes realized in both the single-component matrices of the monomer and the matrices filled by the fiberglass materials is performed. The unstable regimes of the polymerization wave as well as the conditions for the stabilization of the flat front in the filled matrices are described. The peculiarities of the frontal regimes in the three- and two-dimensional media are studied. Some possibilities for using of autowave polymerization in the fabrication of the polymer-fiberglass composites and composition prepregs are discussed. (c) 1999 American Institute of Physics.

Frontal Polymerization

“…Spin modes have also been observed in the FP of transition-metal nitrate/ acrylamide complexes [50,52], which are solid, but were not observed in the frontal acrylamide polymerization system [53].…”

“…Multifunctional monomers such as 1,6 hexanediol diacrylate (HDDA) are liquid but produce a thermoset, solid product, and these we call ''liquid/solid'' systems ( Figure 4.3). Finally, solid monomers such as acrylamide [48,49] and transition-metal nitrate complexes of acrylamide [50][51][52] can be polymerized frontally in ''solid/solid'' systems.…”

Free‐Radical Frontal Copolymerization: The Dependence of the Front Velocity on the Monomer Feed Composition and Reactivity Ratios

“…[3][4][5][6] Subsequent experimental work [7][8][9][10] demonstrated free-radical frontal polymerization for a variety of monomers and studied how experimental conditions affect the process. Most experiments used liquid neat monomers; however, FP has also been demonstrated with solid monomers, [11,12] in dispersions, [13] and in solutions. [14] Some experiments successfully produced Full Paper: Frontal copolymerization is a process in which a spatially localized reaction zone propagates into a mixture of two monomers, converting them into a copolymer.…”

Linear stability analysis of two monomer systems of frontal polymerization

“…Most of these experiments used liquid undiluted monomers. However, FP has also been carried out in systems with solid monomers (Pojman et al, 1993;Barelko et al, 1999), in dispersions , and in solutions (Pojman et al, 1996a). Along with demonstrating the feasibility of FP with particular monomers, experiments have also studied which conditions most a ect the process and how to produce polymers with speciÿc desired properties, e.g.…”