Shah, Parag K. published the artcilePhotopolymerization shrinkage-stress reduction in polymer-based dental restoratives by surface modification of fillers, Computed Properties of 10287-53-3, the publication is Dental Materials (2021), 37(4), 578-587, database is CAplus and MEDLINE.
This research explores the use of polymer brushes for surface treatment of fillers used in polymer-based dental restoratives with focus on shrinkage stress reduction The influence of interfacial reactive groups on shrinkage stress is explored. Oligomers of varying lengths and with varying number of reactive groups along the length were synthesized by modifying com. oligomers. Surface of silica fillers (OX50) was treated with methylaminopropyltrimethoxysilane and this was further reacted with the synthesized oligomers to obtain a series of polymer brushes on the surface. Fillers modified with -methacryloxypropyltrimethoxysilane were used as a control. Filler surface treatment was confirmed using diffuse reflectance spectroscopy and thermogravimetric anal. Fillers were added at 30 wt% to a resin made of BisGMA/TEGDMA and polymerization kinetics, shrinkage stress, volumetric shrinkage, flexural strength and modulus, viscosity were measured. Composites with polymer brush functionalized fillers showed up to a 30% reduction in shrinkage stress as compared to the control, with no reduction in flexural strength and modulus. Shrinkage stress reduced with increasing length of the polymer brush and increased with increase in number of reactive groups along the length of the polymer brush. The interface between inorganic fillers and an organic polymer matrix has been utilized to reduce shrinkage stress in a composite with no compromise in mech. properties. This study gives insights into the stress development mechanism at the interface.
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 C9H6N2O2, Computed Properties of 10287-53-3.
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https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics