Results 301 to 310 of about 105,966 (325)
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Functional group tolerance of AOTEMPO-mediated peroxide cure chemistry

Polymer, 2016
Abstract 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
openaire   +2 more sources

Chemistry, Characterization and Processing of IMC Curing Polymers. [PDF]

open access: possible, 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.
openaire   +1 more source

Investigations into the cumene hydroperoxide-based cure chemistry of anaerobic adhesives

International Journal of Adhesion and Adhesives, 1997
Abstract 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
openaire   +2 more sources

Recent Developments in Radiation Curing Chemistry

1995
Radiation 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
openaire   +2 more sources

Surface chemistry of polycarbonate film and adhesion of ultraviolet-cured inks

Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 1994
One 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
openaire   +2 more sources

Effect of the epoxy resin chemistry on the viscoelasticity of its cured product

Journal of Applied Polymer Science, 2008
AbstractA 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
openaire   +2 more sources

Formation of organic indoor air pollutants by UV-curing chemistry

Journal of Photochemistry and Photobiology A: Chemistry, 2002
UV-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
openaire   +2 more sources

Investigations of Curing Chemistry and Hydrolytic Stability of Polyimide - on - Metal Interfaces

MRS Proceedings, 1993
AbstractPolyimide-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
openaire   +2 more sources

Effect of Cement Chemistry on Accelerated Curing Cycle of Concrete

PCI Journal, 1984
This 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 ...
openaire   +2 more sources

Differences in aroma, chemistry, solubilities, and smoking quality of cured flue-cured tobaccos with aglandular and glandular trichomes

Journal of Agricultural and Food Chemistry, 1992
The chemistry, aroma, solubilities (herane and 95% ethanol), and smoking quality of cured tobacco from three typical flue-cured varieties that produce glandular trichomes on the surface of the green leaf and an atypical aglandular breeding line were compared. The glandular tobaccos produced more characteristic tobacco aroma than the aglandular tobacco.
James F. Chaplin   +2 more
openaire   +2 more sources

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