The dental restorative materials are currently begin made of composites that are based on organic polymer matrix. A great number of dimethacrylates are used as monomers. These compounds reveal high polymerization shrinkage, which is the reason for a variety of unfavorable phenomena. The purpose of this work was to obtain several long chain C4-C12 diol dimethacrylates and to investigate the influence of number of carbon atoms in these esters on the shrinkage of their copolymers with the base monomer (BIS-GMA).
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