Results 301 to 310 of about 112,173 (343)

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 ...
Brian M. Molloy, Kelli-anne Johnson, Rachel J. Ross, J. Scott Parent   +3 more
openaire   +1 more source

The chemistry and applications of UV-cured adhesives

International Journal of Adhesion and Adhesives, 1991
Abstract The chemistry involved in ultra-violet (uv) curing can be divided into two types: free radical and cationic. The more common formulations are cured by free radical polymerization of acrylate functional resins. Cationic polymerization involves the formation of a Bronstead or Lewis acid during the UV initiation which can then polymerize such ...
M.R. Haddon, T.J. Smith
openaire   +1 more source

INSIGHTS INTO THE CURE CHEMISTRY OF BROMINATED BUTYL RUBBER

Rubber Chemistry and Technology, 2019
ABSTRACT The importance of dehydrobromination to the cure chemistry of brominated butyl rubber (BIIR) is demonstrated through a combination of cure rheometry studies and model compound experiments. These data show that, while HBr elimination to give an exomethylene conjugated diene is inevitable, subsequent reactivity is highly sensitive to ...
J. Scott Parent, Michael A. J. Faba, Sagar J. Tipnis, Ralph A. Whitney, Kevin Kulbaba   +4 more
openaire   +1 more source

Chemistry of curing and adhesion properties of phenolic resins

International Journal of Adhesion and Adhesives, 1986
Abstract The adhesive strength of joints bonded by phenolic resins is influenced by factors such as the concentration of hydroxymethyl groups and polyaromatic compounds in the resol and the acidity of the resol, which determines the curing mechanism.
H. Kollek, H. Brockmann, H. Muller von der Haegen   +2 more
openaire   +1 more source

The Chemistry of the Zinc Oxide Cure of Halobutyl

Rubber Chemistry and Technology, 1984
Abstract The studies described in this papier lead to certain conclusions. The crosslinking reaction of halobutyl with zinc oxide does not give rise to ether crosslinks. All the evidence indicates that the chemistry involves the formation of carbon-carbon bonds by an alkylation type chemistry.
I. Kuntz, R. L. Zapp, R. J. Pancirov
openaire   +1 more source

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   +1 more source

Preparation and characterization of polybutadiene curing system by click chemistry

Soft Materials, 2019
ABSTRACTPolybutadiene curing systems from propargyl-terminal polybutadiene (PTPB), triazide acetate propane (TAP) and terminal azido polyethylene glycol (APEG) were prepared via the 1,3-dipolar cyc...
Rui Wang, Xiaomeng Li, Xiaoqing Wang, Yunjun Luo   +3 more
openaire   +1 more source

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 ...
T Salthammer, M Bednarek, F Fuhrmann, R Funaki, S.-I Tanabe   +4 more
openaire   +1 more source

The chemistry of new latent curing systems for epoxy resins

Journal of Applied Polymer Science, 1961
New types of catalyst combinations for epoxy resins are described and examples given. These combinations consist of a triethanolamine-chelated titanium compound or phosphorus compound and a borate ester which react to give triethanolamine borate and other epoxy-reactive products.
S. H. Langer, I. N. Elbling, A. B. Finestone, W. R. Thomas   +3 more
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.
Declan Raftery, Malcolm R. Smyth, Raymond G. Leonard   +2 more
openaire   +1 more source