synthesis and anticancer activities of thiazoles, 1, 3-thiazines, and thiazolidine using chitosan-grafted-poly (vinylpyridine
) as basic catalyst.
latex, said to be a worldwide industry standard for rubber reinforcement latices, is featured in this eight-page, four-color brochure.
But there's another twist: the polymer they chose to add, poly (vinylpyridine
), is sensitive to pH, a property that was passed on to the CNCs.
Moore and his colleagues found that coating the surface of gallium phosphide with a film of the polymer vinylpyridine
alleviates the instability problem, and if the vinylpyridine
is then chemically treated with the cobaloxime catalyst, hydrogen production is significantly boosted.
Shailaja, "Ceria-supported vinylpyridine
polymers: synthesis, characterization and application in catalysis," International Journal of Polymeric Materials, vol.
There are a variety of such monomers which can carry basic (e.g., vinylpyridine
) or acidic (e.g., methacrylic acid) functional groups.
The types of polymers are poly(ethylene oxide), poly(vinyl alcohol), polysaccharides, poly((meth)acrylic acid), poly(acrylamide), poly(vinylamine) poly(vinylpyridine
), poly(vinylimidazole), poly(vinylpyrrolidone), and other cationic and anionic polymers.
Methyl methacrylate and vinylpyridine
are copolymerized using tetraphenylporphyrin aluminum(III) chloride (TPPAlCl) as a catalyst.
Elaasser, "Synthesis and anticancer activities of thiazoles, 1,3-thiazines, and thiazolidine using chitosan-graftedpoly(vinylpyridine
) as basic catalyst," Heterocycles, vol.
Methacrylic acid is the monomer most often used to interact with templates bearing electron donating functionalities, while vinylpyridine
makes a good hydrogen acceptor.
Given that the molecular mass of vinylpyridine
is 105, this increase in mass was thought to result from adduct formation between vinylpyridine
and the peptide.