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New urethane dimethacrylates for testing in dental applications. Relational aspects in chemistry and photochemistry of composite materials

T. BURUIANA1, E. C. BURUIANA1, V. MELINTE1, V. POHOATA2, C. PREJMEREAN3,* , M. MOLDOVAN3

Affiliation

  1. Petru Poni Institute of Macromolecular Chemistry, 41 A Gr. Ghica Voda Alley, 700487 Iasi
  2. Al. I. Cuza University, Iasi
  3. Raluca Ripan Institute of Researches in Chemistry, Cluj-Napoca, Romania

Abstract

Two urethane dimethacrylate oligomers containing poly(ethylene oxide) spacer of variable length (O-UDMA, UDMA-COOH) and a derivative of bis-GMA modified (bisGMA-ethyl) were synthesized in order to be evaluated as photopolymerizable monomers in dental composites. The photopolymerization of them was monitored by FTIR and fluorescence spectroscopy, and for some cured specimens the water sorption, contact angle have been determined relatively to those in which was incorporated modified/non-modified bis-GMA. If such monomers can provide strong polymers, they could offer alternative to the existing dental monomers..

Keywords

Urethane dimethacrylate, BisGMA, Dental formulation, Fluorescence.

Submitted at: Nov. 13, 2007
Accepted at: April 4, 2008

Citation

T. BURUIANA, E. C. BURUIANA, V. MELINTE, V. POHOATA, C. PREJMEREAN, M. MOLDOVAN, New urethane dimethacrylates for testing in dental applications. Relational aspects in chemistry and photochemistry of composite materials, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 4, pp. 969-974 (2008)