Results 301 to 310 of about 109,294 (342)
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Functional group tolerance of AOTEMPO-mediated peroxide cure chemistry
Polymer, 2016Abstract Delayed onset formulations for the peroxide-initiated crosslinking of a range of commodity polymers are described. 4-Acryloyloxy-2,2,6,6,-tetramethylpiperidin-N-oxyl (AOTEMPO) is effective for controlling the crosslinking dynamics and yields of linear low density polyethylene (LLDPE), poly(ethylene-co-vinyl acetate) (EVA), poly(ethylene-co ...
J. Scott Parent +3 more
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Chemistry, Characterization and Processing of IMC Curing Polymers. [PDF]
, 1983 Abstract : A variety of methods for a low-cost synthesis of the IMC curable monomer, 2,2'-bis(phenyl-ethynyl)-4,4',5,5'-tetraaminobiphenyl, were explored without success. A low-cost route was found for the preparation of the IMC curable monomer, 2,2'-bis(phenylethynl)-5,5'-diaminobiphenyl.
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Investigations into the cumene hydroperoxide-based cure chemistry of anaerobic adhesives
International Journal of Adhesion and Adhesives, 1997Abstract Anaerobic adhesives polymerise rapidly, by a free radical mechanisms, when confined between two closely fitting metal surfaces to form tough solvent and heat resistant material. Anaerobic adhesives are typically based on methacrylate monomers and are predominantly used for the sealing and retaining of metallic objects.
Raymond G. Leonard +2 more
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A review of nitrite and chloride chemistry: Interactions and implications for cured meats
Journal of the Science of Food and Agriculture, 1985AbstractConcerns for the health‐related implications of sodium nitrite and sodium chloride in cured meats have lead to reductions in use of both ingredients and there is evidence of chemical interaction between nitrite and chloride in food systems which have implications for cured meats.
Joseph G. Sebranek, Jay B. Fox
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Recent Developments in Radiation Curing Chemistry
1995Radiation curing has found a growing number of applications in recent years, because of the unique characteristics of this advanced technology—mainly its great speed, selective cure, and 100% solid formulation. The performances of some newly developed photoinitiators (PI) are briefly described in this survey on the chemistry of UV-curable systems. With
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Surface chemistry of polycarbonate film and adhesion of ultraviolet-cured inks
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 1994One of the primary uses of polycarbonate film is in screen-printing applications, with ultraviolet (UV)-cured inks becoming increasingly popular due to environmental concerns. During multicolor printing operations, regions of the polycarbonate film surface are unavoidably exposed to UV irradiation during the cure of adjacent regions.
Michael C. Burrell, Mark G. Tilley
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Effect of the epoxy resin chemistry on the viscoelasticity of its cured product
Journal of Applied Polymer Science, 2008AbstractA detailed study investigating the relation between the initial resin composition and mixing ratio on the viscoelastic behavior was performed. The resin system, containing a difunctional aromatic epoxy (DER 332), was mixed with three aliphatic amines containing functionalities of 2, 3, and 4 in different stoichiometric mixing ratios and was ...
L.J. Ernst +3 more
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Formation of organic indoor air pollutants by UV-curing chemistry
Journal of Photochemistry and Photobiology A: Chemistry, 2002UV-curable systems for manufacturing of furniture and parquet form a major and growing field in radiation curing. Numerous types and combinations of photoinitiators have been developed for crosslinking of acrylated systems and unsaturated polyesters. The properties of the photoinitiators being used in these materials must fulfill requirements like low ...
Tunga Salthammer +4 more
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Investigations of Curing Chemistry and Hydrolytic Stability of Polyimide - on - Metal Interfaces
MRS Proceedings, 1993AbstractPolyimide-on-metal interfaces relevant to electronics packaging applications have been studied by Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). Two polyimides with different backbone structures were considered: (i) biphenyltetracarboxylic dianhydride (BPDA) - p-phenylene diamine (PDA) and (ii) 4,4 ...
David Volfson +6 more
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Effect of Cement Chemistry on Accelerated Curing Cycle of Concrete
PCI Journal, 1984This paper presents the results of an investigation into improving the high early compressive strength of concrete containing Type III cement in a prestressed concrete manufacturing plant using accelerated curing techniques. The effects of physical and chemical cement characteristics are discussed with emphasis on C 3S and C3A contents, SO3 ...
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