Palialol, Alan R. published the artcileImprovement on properties of experimental resin cements containing an iodonium salt cured under challenging polymerization conditions, Product Details of C11H15NO2, the publication is Dental Materials (2021), 37(10), 1569-1575, database is CAplus and MEDLINE.
The use of resin cements in clin. practice entails photopolymerization through prosthetic devices, which precludes light penetration. The objective of this study was to modify exptl. resin cements (ERCs) with diphenyliodonium hexafluorophosphate (DPI) in an attempt to improve chem. and mech. properties of materials cured with reduced irradiance and final radiant exposure.A co-monomer base containing A 1:1 mass ratio of 2.2-bis[4-(2-hydroxy-3-methacryloxypropoxy)phenyl]propane (bis-GMA) and triethyleneglycol dimethacrylate (TEGDMA) was prepared, with 1 mol% of camphorquinone and 2 mol% of Et 4-(dimethylamino)benzoate as initiator system. The resin was divided into 4 fractions according to the DPI concentrations (0, 0.5, 1 and 2 mol%). The challenging polymerization condition was simulated performing the light activation (12, 23 and 46 s) through a ceramic block (3 mm thick). The irradiance was assessed with a calibrated spectrometer (1320 mW/cm2), resulting in three levels of radiant exposure (0.58, 1.1 and 2.2 J/cm2). The polymerization kinetics was evaluated in real-time using a spectrometer (Near-IR). Water sorption and solubility was analyzed and the cohesive strength of resins obtained through the microtensile test. Polymerization stress was assessed by Bioman method.Resins containing DPI had higher degree of conversion and rate of polymerization than the control (without DPI). The use of DPI reduced water sorption and solubility, and led to higher cohesive strength compared to resins without the iodonium salt. However, the stress of polymerization was higher for exptl. resins with DPI.Even under remarkably reduced irradiance, cements containing A ternary initiating system with an iodonium salt can present an optimal degree of conversion and chem./mech. properties.
Dental Materials published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C11H15NO2, Product Details of C11H15NO2.
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https://en.wikipedia.org/wiki/Ester,
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