Highly cross-linked networks for dental applications obtained by photocuring of tris[2-(acryloyloxy)ethyl]isocyanurate, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol triacrylate, and pentaerythritol triacrylate.
Highly cross-linked networks have been obtained by photoinitiated camphorquinone-amine polymerization of tris[2-(acryloyloxy)ethyl]isocyanurate alone and/or with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol triacrylate or pentaerythritol triacrylate, which can be considered a new class of dental restorative resins. The most effective coinitiators in this system are amines such as ethyl-4-dimethylaminobenzoate, N,N-dimethyl-benzylamine, and 2,4,6-tris(dimethylaminomethyl)phenol. The volume shrinkages of polymerized samples were 8%-13%. The hardness of photocured resins in the presence of an inorganic filler (aluminum/fluoro/silicate glass, Ketac-Fil was slightly less than that of a restorative composite material (Z100 MP).
Nie
J
J
Polymer Research Group, Karolinska Institute, Huddinge, Sweden.
Lindén
L A
LA
Rabek
J F
JF
Ekstrand
J
J
D000179:Acrylates / Q000737:chemistry; D002152:Calorimetry, Differential Scanning; D003188:Composite Resins / Q000737:chemistry*; D003432:Cross-Linking Reagents; D006244:Hardness; D008027:Light; D011108:Polymers / Q000737:chemistry; D011409:Propylene Glycols / Q000737:chemistry; D013729:Terpenes / Q000737:chemistry*; D014227:Triazines / Q000737:chemistry*
D000179:Acrylates; D003188:Composite Resins; D003432:Cross-Linking Reagents; D011108:Polymers; D011409:Propylene Glycols; D013729:Terpenes; D014227:Triazines; C048339:camphoroquinone; C027993:trimethylolpropane triacrylate; C027992:pentaerythrityl triacrylate