Vinylphosphonic acid properties

Ellis, J. Wilson, A. D. (1992). The formation and properties of metal oxide poly(vinylphosphonic acid) cements. Dental Materials, 8, 79-84. 

The IL polymers were prepared from polymerizable anions and free imidazolium cations. To investigate the effect of the anion structure on the properties, four kinds of IL monomers were synthesized by neutralizing A-ethylimidazole with acryhc acid, -styrenesulfonic acid, vinylsulfonic acid, and vinylphosphonic acid, respectively, as shown in Figure 29.6 [32]. Table 29.1 summarizes the properties of IL monomers composed of the polymerizable anion and an ethylimidazolium cation. They are liquid at room temperature and show quite low Tg s in the range of —100 to —60°C. EImVS showed the lowest Tg of 95°C among these four IL monomers. In addition it showed the highest ionic conductivity of about 10 S cm at 30°C, which is comparable to that of the best ILs such as the l-ethyl-3-methylimidazolium salts. 

Phosphorus-containing polymers, especially those comprising vinylphosphonic acid (VPA) and vinylphosphonate moieties, have become attractive polymers on an industrial scale, due to their various applications based on the properties of the phosphonic group. In early applications, poly(VPA) and its derivatives were noted as efficient scale inhibitors in cooling and boiler water systems, by inhibiting the formation of calcium sulfate, carbonate, and phosphate and as flame retardants." ... 

Hwang et al. synthesized poly(vinylphosphonic acid-co-methaciylic acid) microbeads by suspension polymerization, and they investigated the adsorption properties with indium. The maximum adsorption predicted by the Langmuir adsorption isotherm model was greatest at a 0.5 mol ratio of vinylphosphonic acid. The adsorption capacity of indium was... 

Synonyms Bis (P-chloroethyl) p-chloroethanephosphonate Di (2-chloroethyl)-2-chloroethanephosphonate Phosphonic acid, (2-chloroethyl)-bis(2-chloroethyl) ether Empirical C6H12CI3O3P Properties M.w. 269.49 Uses Flame retardant additive in rigid PU foams, rebonded foams, adhesives, coatings intermediate for bis(2-chloroethyl) vinylphosphonate, a flame-retardant monomer... 

Finally, a thiol-ene reaction was used with vinylphosphonate monomers using CTAs carrying hydrophobic chains, in order to improve the hydrophobic properties of metallic surfaces (Scheme 3.3). The phosphonic acid groups are used to promote adhesion of hydrophobic chains onto the... 

Zmudzka K, Johansson T, Wojcik M, Janicka M, Nowak M, Stawinski J, Nawrot B (2003) Novel DNA analogues with 2-, 3- and 4-pyridylphosphonate intemucleotide bonds synthesis and hybridization properties. New J Chem 27 1698-1705 Abbas S, Bertram RD, Hayes CJ (2(X)1) Commercially available 5 -DMT phosphoramidites as reagents for the synthesis of vinylphosphonate-linked oligonucleic acids. Org Lett 3 3365-3367... 

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