Results 11 to 20 of about 1,308 (110)

Unveiling the Effects of Thermal Aging on the Oxidative Stability of Biobased Low-Density Polyethylenes [PDF]

ACS Omega
Joanna Aniśko-Michalak, Anatolij Sokolohorskyj, Izabela Szafraniak-Wiza, Paulina Kosmela, Adam Piasecki, Mateusz Barczewski   +5 more
doaj   +2 more sources

Radio-Oxidation of Electric Cabled Models: Ageing Evaluation at the Atomic Scale

Energies, 2022
The functionality of electric cables, being the safety components of plants, has to be ensured. In nuclear power plants, when they are in the reactor building, these cables can suffer γ irradiation even in normal operating conditions.
Muriel Ferry, Frederic Miserque
doaj   +1 more source

Polymerization of Ethylene Catalyzed by Vanadium(III) Complexes

Orbital: The Electronic Journal of Chemistry, 2017
Thirty five  complexes of 1,2- bis(benzimidazole, benzothiazole and benzoxazole)benzene,  1,2-bis(benzimidazole, benzothiazole and benzoxazole)-4-methyl-benzene, 1,2-bis  (benzimidazole, benzothiazole and benzoxazole)4-bromobenzene, 1, 2-bis ...
Hamdi Ali Elagab
doaj   +3 more sources

Comparison of transosseous suture and suture anchors in the fixation of rotator cuff tears: a biomechanical experimental study

Acta Orthopaedica et Traumatologica Turcica, 2021
Objectives: This study was designed to compare the primary fixation strength of transosseous sutures and suture anchors in rotator cuff repair.\nMethods: Thirty-two sheep shoulders were divided into four homogeneously equal groups.
Ata Can lar, Mehmet Demirhan, Ergun Bozdag, Yilmaz Akalin, Alaeddin Arpaci   +4 more
doaj  

Relaxation and physicomechanical characteristics of polyethylenes with different molecular weights

Тонкие химические технологии, 2019
Objectives. Determination of the influence of molecular weight on the modulus of elasticity, yield, strength, and retardation processes in polyethylene.Methods.
R. A. Alekhina, V. A. Lomovskoy, I. D. Simonov-Emel’yanov, S. A. Shatokhina   +3 more
doaj   +1 more source

6-Arylimino-2-(2-(1-phenylethyl)naphthalen-1-yl)-iminopyridylmetal (Fe and Co) Complexes as Highly Active Precatalysts for Ethylene Polymerization: Influence of Metal and/or Substituents on the Active, Thermostable Performance of Their Complexes and Resultant Polyethylenes

Molecules, 2020
A series of 6-arylimino-2-(2-(1-phenylethyl)naphthalen-1-yl)iminopyridines and their iron(II) and cobalt(II) complexes (Fe1–Fe5, Co1–Co5) were synthesized and routinely characterized as were Co3 and Co5 complexes, studied by single crystal X-ray ...
Wenhua Lin, Liping Zhang, Jiahao Gao, Qiuyue Zhang, Yanping Ma, Hua Liu, Wen-Hua Sun   +6 more
doaj   +1 more source

The effect of modality on linear low-density polyethylene crystallization behaviour at high and very high supercoolings; pp. 53–57 [PDF]

Proceedings of the Estonian Academy of Sciences, 2009
Isothermal crystallization rates of uni- and bimodal linear low density polyethylenes having similar average molar mass and branching content were analysed at various temperatures in a very high supercooling range by means of a novel method – chip ...
Triin Märtson, Andres Krumme, Veronika Gavrilkina, Anti Viikna   +3 more
doaj   +1 more source

Correlation of cross-linking as measured by the trans-vinylene index and in vitro wear of polyethylene from various acetabular liner brands

Bone & Joint Research
Aims: Highly cross-linked polyethylene (HXLPE) greatly reduces wear in total hip arthroplasty, compared to conventional polyethylene (CPE). Cross-linking is commonly achieved by irradiation. This study aimed to compare the degree of cross-linking and in
Peter Wahl, Roman Heuberger, Andrea Pascucci, Thomas Imwinkelried, Markus Fürstner, Niels Icken, Michel Schläppi, Robin Pourzal, Emanuel Gautier   +8 more
doaj   +1 more source

Photodegradable branched polyethylenes from carbon monoxide copolymerization under benign conditions

Nature Communications, 2020
Small amounts of in-chain keto groups render polyethylene (PE) photodegradable, a desirable feature in view of environmental plastics pollution. Here the authors introduce low ketone content by copolymerization in organic solvent or under aqueous ...
Tobias O. Morgen, Maximilian Baur, Inigo Göttker-Schnetmann, Stefan Mecking   +3 more
doaj   +1 more source

Recent update on crosslinked polyethylene in total hip arthroplasty

SICOT-J, 2020
More than two decades after their clinical introduction, crosslinked polyethylenes (XLPE) have been widely adopted. Though concerns were initially raised regarding oxidation and brittleness, on a large scale, the first generation of XLPE continues to be ...
Langlois Jean, Hamadouche Moussa
doaj   +1 more source