Premium
Hyperbranched Polymers by Type II Photoinitiated Self‐Condensing Vinyl Polymerization
Author(s) -
Aydogan Cansu,
Ciftci Mustafa,
Yagci Yusuf
Publication year - 2016
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201500721
Subject(s) - photoinitiator , comonomer , methacrylate , polymer chemistry , benzophenone , polymerization , materials science , polymer , photopolymer , photochemistry , branching (polymer chemistry) , chemistry , monomer , composite material
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.