Latex Syntheses Using Novel Tertiary Amine Methacrylate-Based Macromonomers Prepared by Oxyanionic Polymerization

Autor:	S. P. Armes, Stuart F. Lascelles, F. Malet, Norman C. Billingham, R. Mayada
Rok vydání:	1999
Předmět:	Dispersion polymerization Polymers and Plastics Tertiary amine Chemistry Organic Chemistry Radical polymerization Emulsion polymerization Methacrylate Macromonomer Inorganic Chemistry End-group Anionic addition polymerization Polymer chemistry Materials Chemistry Organic chemistry
Zdroj:	Macromolecules. 32:2462-2471
ISSN:	1520-5835 0024-9297
DOI:	10.1021/ma981967e
Popis:	Recently, Nagasaki et al. [Macromol. Rapid Commun. 1997, 18, 827−835] reported that certain heteroatom methacrylate monomers such as 2-(diethylamino)ethyl methacrylate (DEAEMA) can be polymerized at room temperature using oxyanionic initiators such as potassium ethoxide. Furthermore, functional initiators such as potassium 4-vinylbenzyl alcoholate produced styrene-functionalized macromonomers. We have utilized this chemistry to synthesize a range of novel, well-defined water-soluble macromonomers based on 2-(dimethylamino)ethyl methacrylate (DMAEMA) and other tertiary amine methacrylates. These macromonomers were typically contaminated with small amounts of residual initiator, but this could be easily removed by precipitation into n-hexane. NMR and GPC studies confirmed that each poly(DMAEMA) chain had a polymerizable styrene end group. Selected macromonomers were used to prepare submicrometer-sized and micrometer-sized polystyrene latexes via aqueous emulsion and nonaqueous dispersion polymerization, res...
Databáze:	OpenAIRE
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