Styrylmethyl(trimethyl)ammonium Methacrylate Polyampholyte Latexes

Autor:	Kenneth W. Hampton, Warren T. Ford
Rok vydání:	2000
Předmět:	Polymers and Plastics Organic Chemistry Emulsion polymerization Divinylbenzene Methacrylate Chloride Polyelectrolyte Styrene Inorganic Chemistry chemistry.chemical_compound chemistry Polymer chemistry Materials Chemistry medicine Ammonium Ammonium chloride medicine.drug
Zdroj:	Macromolecules. 33:7292-7299
ISSN:	1520-5835 0024-9297
DOI:	10.1021/ma000447s
Popis:	Monodisperse polyampholyte latexes that contain 25/23 and 29/18 mol % of polystyrylmethyl-(trimethyl)ammonium and methacrylate groups were prepared by emulsion polymerization of vinylbenzyl chloride (VBC), tert-butyl methacrylate (tBMA), styrene, and divinylbenzene followed by stepwise conversion of the VBC and tBMA to cations and anions, respectively. As NaCl is added to aqueous dispersions, the polyampholyte latexes shrink up to 0.5 M and then swell up to 5 M NaCI, in which the particles are colloidally stable. The polyampholyte latexes also are colloidally stable in 1.2 M BaCl 2 solution. In contrast, the precursor quaternary ammonium chloride polyelectrolyte latexes coagulate rapidly in NaCl and BaCl 2 solutions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8139fe7529af5c65cf0fe4513bc67119 https://doi.org/10.1021/ma000447s Zobrazit plný text záznamu