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Polymerization of Cyclic Monomers, 12
Author(s) -
Moszner Norbert,
Zeuner Frank,
Fischer Urs Karl,
Rheinberger Volker,
de Meijere Armin,
Bagutski Viktor
Publication year - 2006
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200500264
Subject(s) - monomer , materials science , chlorobenzene , polymerization , polymer chemistry , copolymer , diluent , reactivity (psychology) , radical polymerization , shrinkage , radical initiator , polymer , glass transition , composite material , chemistry , organic chemistry , catalysis , medicine , alternative medicine , pathology
Summary: The radical polymerization of different substituted methyl 2‐(bicyclo[3.1.0]hex‐1‐yl) acrylates, 1a – f , was initiated by 2,2′‐azoisobutyronitrile (AIBN) at 65 °C in chlorobenzene. The radical homopolymerization of 1a – f occurred through the opening of the cyclopropane ring, and lead to polymers with number‐average molecular weights of 13 000 to 434 400 g · mol −1 and glass transition temperatures between 77 and 121 °C. The monomers 1a – f showed a similar reactivity to MMA (in the copolymerization with MMA). Selected monomers were determined to be diluent monomers for dental filling composites and enable the preparation of composites that show a significantly reduced polymerization shrinkage, compared to composites based on dimethacrylate diluents.