Polymerization of Cyclic Monomers, 12

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 n...

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Bibliographic Details
Published in:Macromolecular materials and engineering 2006-01, Vol.291 (1), p.83-89
Main Authors: Moszner, Norbert, Zeuner, Frank, Fischer, Urs Karl, Rheinberger, Volker, de Meijere, Armin, Bagutski, Viktor
Format: Article
Language:English
Subjects:
dental polymers
polymerization shrinkage
radical polymerization
ring-opening polymerization
vinylcyclopropanes
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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.
ISSN:1438-7492
1439-2054
DOI:10.1002/mame.200500264