Amphiphilic gradient copolymer of [poly(ethylene glycol) methyl ether] methacrylate and styrene via atom transfer radical polymerization
| Autor: | Somi Jeong, Bongsoo Kim, Hyun-jong Paik, Hyo-Kyoung Lee, Jang-Oo Lee |
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| Rok vydání: | 2011 |
| Předmět: |
Materials science
Polymers and Plastics Atom-transfer radical-polymerization General Chemical Engineering Organic Chemistry Ether Methacrylate Photochemistry Lower critical solution temperature Styrene chemistry.chemical_compound chemistry Polymer chemistry Materials Chemistry Copolymer Gradient copolymers Ethylene glycol |
| Zdroj: | Macromolecular Research. 19:1257-1263 |
| ISSN: | 2092-7673 1598-5032 |
| DOI: | 10.1007/s13233-011-1207-z |
| Popis: | Well-defined amphiphilic gradient copolymers of poly(ethylene glycol) methyl ether methacrylate (PEGMA) and styrene were successfully synthesized using atom transfer radical polymerization. The relative reac- tivity ratio of PEGMA to styrene was determined using the Jaacks method. The initial feed ratio of the two mono- mers had a significant effect on the copolymer's gradient composition. The resultant copolymers were characterized by nuclear magnetic resonance and Fourier transform-infrared spectroscopy to confirm their structures and mono- mer compositions. The lower critical solution temperature behavior of the copolymers was investigated using ultra- violet-visual spectroscopy. The micellization behavior of the PEGMA and styrene copolymers in aqueous solution was observed by transmission electron microscopy and dynamic laser scattering. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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