Open AccessTesting of residual monomer content reduction possibility on acrilic resins quality
Author(s) -
Milena Kostić,
Nebojša Krunić,
Ljubiša Nikolić,
Vesikolić,
Stevo Najman,
I. Kostič,
Jovana Rajković,
Miodrag Manić,
Dušan Petković
Publication year - 2011
Publication title -
hemijska industrija
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.147
H-Index - 19
eISSN - 2217-7426
pISSN - 0367-598X
DOI - 10.2298/hemind101103008k
Subject(s) - polymerization , monomer , acrylic resin , materials science , biocompatibility , methyl methacrylate , polymer , methacrylate , polymer chemistry , chemical engineering , composite material , engineering , metallurgy , coating
Poly (methyl methacrylate) (PMMA) is material widely used in dentistry. Despite the various methods used to initiate the polymerization of acrylic resins, the conversion of monomer to polymer is not complete thus leaving some unreacted methyl methacrylate (MMA), known as residual monomer (RM), in denture structure. RM in dental acrylic resins has deleterious effects on their mechanical properties and their biocompatibility. The objective of the work was to test the residual monomer reduction possibility by applying the appropriate postpolymerization treatment as well as to determine the effects of this reduction on pressure yields stress and surface structure characteristics of the acrylic resins. Postpolymerization treatments and water storage induced reduction of RM amount in cold-polymerized acrylic resins improved their mechanical properties and the homogenized surface structure. After the polymerization of heat-polymerized acrylic resins the post-polymerization treatments for improving the quality of this material type are not necessary