Results 31 to 40 of about 6,548 (226)
Is methylmethacrylate toxic during pregnancy and breastfeeding?--- a systematic review
Arthroplasty, 2021 Introduction Methyl methacrylate (MMA) is commonly used in the fields of dentistry and orthopaedic surgery. However, there remain concerns for the occupational hazards of MMA, particularly during pregnancy and breastfeeding.
James S. Lin +3 more
doaj +1 more source
ATRP enhances structural correlations in polymerization-induced phase separation [PDF]
arXiv, 2022 Synthetic methods to control the structure of materials at sub-micron scales are typically based on the self-assembly of structural building blocks with precise size and morphology. On the other hand, many living systems can generate structure across a broad range of length scales in one step directly from macromolecules, using phase separation.
arxiv
Measurement of the depth-dependent local dynamics in thin polymer films through rejuvenation of ultrastable glasses [PDF]
arXiv, 2023 We measure the isothermal rejuvenation of stable glass films of poly(styrene) and poly(methylmethacrylate). We demonstrate that the propagation of the front responsible for the transformation to a supercooled-liquid state can serve as a highly localized probe of the local supercooled dynamics.
arxiv
Arabian Journal of Chemistry, 2017 Poly (methylmethacrylate) nanocomposite was prepared via in-situ emulsion polymerization (PMMA/Mt-CTA). The modified montmorillonite (Mt-CTA) is used as hosts for the preparation of poly (methylmethacrylate) nanocomposites with basal distance 1.95 nm ...
Ahmed M. Youssef +3 more
doaj +1 more source
Tunable Solid State and Flexible Graphene Electronics [PDF]
, 2014 We demonstrate tunable solid state and flexible graphene field effect devices (FEDs) fabricated using a poly(methylmethacrylate) (PMMA) and lithium fluoride (LiF) composite dielectric. Increasing the concentration of LiF in the composite dielectric reduces the operating gate voltages significantly from 10 V to 1 V required leading to a decrease in ...
arxiv +1 more source
Chemical recycling of plastics by fluidized bed pyrolysis
Fuel Communications, 2021 The chemical recycling of different kinds of mixed, dirty, or filled plastic waste is carried out in a fluidized bed process. The high heat transfer is one of the advantages for using a fluidized bed reaktor.
Walter Kaminsky
doaj
Interaction between Nearly Hard Colloidal Spheres at an Oil-Water Interface [PDF]
Phys. Rev. Research 2, 023388 (2020), 2018 We show that the interaction potential between sterically stabilized, nearly hard-sphere [poly(methylmethacrylate)-poly(lauryl methacrylate) (PMMA-PLMA)] colloids at a water-oil interface has a negligible unscreened-dipole contribution, suggesting that models previously developed for charged particles at liquid interfaces are not necessarily applicable
arxiv +1 more source
A study of multisubstituted chain transfer agents on the kinetics of homopolymerisation of methylmethacrylate . [PDF]
مجلة التربية والعلم, 2013 : A continuation to a previous study of monosubstiuted transfer agents, carried out by the same author, this investigation had been done. It has been found that multisubstituted chain transfer agents, such as tricholoro acetic acid, Di and ...
Dhari Abdullah
doaj +1 more source
Using the head as a mould for cranioplasty with methylmethacrylate [PDF]
Journal of Neurosciences in Rural Practice, 2013 ABSTRACTMethacrylate is a valuable tool to the neurosurgeon, even though it is currently being replaced by custom bone. During cranioplasty in the absence of custom bone, which is preformed based on the patients imaging, one has to make a cast to cover the cranial defect with or without the use of a mould.
Gyang Markus Bot +7 more
openaire +3 more sources
Advanced Optical Materials, EarlyView.Complexes [PtII(Cbz‐C^C*bzim/im)(L^L)], bearing carbazole‐appended cyclometalated NHCs, show bright phosphorescence, peaking from the blue to the yellowish–green spectral range depending on the carbene, L^L, and doping concentration. Non‐doped OLEDs using 1A or 3A (L^L = acac or P^O2) reach the best performances (Von: 2.99 V, 2.55 V; Lmax: 39208, 25837
Jorge Roy +9 more
wiley +1 more source