Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 37, Issue 7, Pages 650-654Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201500721
Keywords
hyperbranched polymers; photopolymerization; vinyl polymerization
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Funding
- TUBITAK (The Scientific and Technical Research Council of Turkey) [113Z234]
- TUBITAK
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Type II photoinitiated self-condensing vinyl polymerization for the preparation of hyperbranched polymers is explored using 2-hydroxyethyl methacrylate (HEMA) or 2-(dimethylamino) ethyl methacrylate (DMAEMA), and methyl methacrylate as hydrogen donating inimers and comonomer, respectively, in the presence of benzophenone and camphorquinone under UV and visible light. Upon irradiation at the corresponding wavelength, the excited photoinitiator abstracts hydrogen from HEMA or DMAEMA leading to the formation of initiating radicals. Depending on the concentration of inimers, type of the photoinitiator, and irradiation time, hyperbranched polymers with different branching densities and cross-linked polymers are formed.
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