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Low shrinkage materials for dental and ophthalmic applications

Objective

New materials shall be developed for use in dentistry or optics. The main demands are low shrinkage during processing and biocompatibility; in dentistry mechanical hardness and good optical quality (almost colorless, high cohesion and adhesion power) are most prominent, while for bifocal lenses birefringence is the additional demand. These properties shall be realized with new plastic materials produced by curing via radical ring opening reactions or ring opening metathesis reactions initiated by new transition metal complexes. Liquid crystalline starting materials play an important role. By incorporation of fluorinated polymers better results are expected (less plaque adsorption, zero shrinkage, caries resistance); bi- or multifocal contact lenses shall be made from hard or soft materials, mesogenes yield birefringence, the fluorinated groups control the diffusivity. Lab synthesis, up-scaling and physical testing are provided.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

GRAZ UNIVERSITY OF TECHNOLOGY
Address
16/I,stremayrgasse 16/I
8010 Graz
Austria

Participants (5)

HEINRICH-HEINE-UNIVERSITAET DUESSELDORF
Germany
Address
Universitaetsstr. 1
40225 Duesseldorf
IVOCLAR VIVADENT AG
Liechtenstein
Address
Bendererstrasse 2
9494 Schaan
ORGENTIS CHEMICALS GMBH
Germany
Address
Bahnhofstrasse 3-5
06466 Gatersleben
UNIVERSITA DEGLI STUDI DI PISA
Italy
Address
Via Risorgimento 35
56100 Pisa
UNIVERSITE DE LIEGE
Belgium
Address
3,Allée De La Chimie 3 Institut De Chimie B6 Allée
4000 Liege