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Nitroxide-Mediated Surfactant-Free Emulsion Polymerization of n-Butyl Methacrylate with a Small Amount of Styrene
Nitroxide-Mediated Surfactant-Free Emulsion Polymerization of n-Butyl Methacrylate with a Small Amount of Styrene
- Source :
- Macromolecules. 43:7958-7963
- Publication Year :
- 2010
- Publisher :
- American Chemical Society (ACS), 2010.
-
Abstract
- Nitroxide-mediated emulsion polymerization of n-butyl methacrylate (BMA) can produce highly living and well-controlled polymer chains when polymerized in the presence of 10 mol % styrene (St) using a one-pot, differential monomer addition technique. When n-BMA-co-St is polymerized in the presence of a surfactant above the critical micelle concentration, bimodal particle size distributions are obtained, likely as a result of combined micellar and aggregative nucleation mechanisms. This phenomenon is not observed for the more hydrophilic monomer system of methyl methacrylate and styrene. In the absence of surfactant, however, it is possible to prepare stable, monomodal latexes. Using N-tert-butyl-N-(1-diethylphosphono-2,2-dimethylpropyl) nitroxide (SG1), we report the first nitroxide-mediated polymerization of n-butyl methacrylate with a small amount of styrene in a facile surfactant-free emulsion polymerization system. The surfactant-free system requires no separate macroinitiator synthesis step and produc...
- Subjects :
- Nitroxide mediated radical polymerization
Polymers and Plastics
Chemistry
Organic Chemistry
technology, industry, and agriculture
Emulsion polymerization
Methacrylate
Styrene
Inorganic Chemistry
chemistry.chemical_compound
Chain-growth polymerization
Polymerization
Polymer chemistry
Materials Chemistry
Copolymer
Methyl methacrylate
Subjects
Details
- ISSN :
- 15205835 and 00249297
- Volume :
- 43
- Database :
- OpenAIRE
- Journal :
- Macromolecules
- Accession number :
- edsair.doi...........5486436e5caf134fbcfd06207abdd9da
- Full Text :
- https://doi.org/10.1021/ma1012286