## Abstract A new type pyridinium salt monomer, 1โvinylโ4โcarbamidopyridinium perchlorate, was prepared, and then homopolymerized and copolymerized with methyl methacrylate (MMA), 2โhydroxyethyl methacrylate (HEMA), styrene, and acrylonitrile. Redox potentials of these pyridinium salt monomer and p
Copolymerization Behavior of Acid-Base Monomer Systems and Properties of their Corresponding Polymers
โ Scribed by Christian Schmidt; Friederike Merz; Shaoqun Jiang; Marco Drache; Gudrun Schmidt-Naake
- Book ID
- 102484522
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 264 KB
- Volume
- 292
- Category
- Article
- ISSN
- 1438-7492
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โฆ Synopsis
Abstract
The copolymerization behavior of mixtures of an acidic and a basic monomer were studied as a function of the monomer feed composition. The four systems investigated in this way comprised APSA/1โVIm, APSA/4โVP, APSA/DAMA, and SSA/1โVIm. The corresponding polyelectrolytes were obtained by free radical polymerization of the monomer mixtures in solution, while the isolated monomeric salts of equivalent amounts of both monomers were prone to spontaneous polymerization. For APSA/1โVIm, APSA/4โVP, and APSA/DAMA, a donorโacceptor relationship was found, whereas for SSA/1โVIm the SSA was favorably incorporated over all feed ratios. High T~g~ and complex viscosity data indicated a considerable degree of ionic, thermally reversible crosslinking within the polymers that were thermally stable up to at least 230โยฐC.
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