Results 31 to 40 of about 7,263 (192)

Synthesis and characterization of 2-(2-benzhydrylnaphthyliminomethyl)pyridylnickel halides: formation of branched polyethylene [PDF]

, 2013
A series of 2-(2-benzhydrylnaphthyliminomethyl)pyridine derivatives (L1–L3) was prepared and used to synthesize the corresponding bis-ligated nickel(II) halide complexes (Ni1–Ni6) in good yield.
Cao, Xiao Ping, Cao, Xiao-Ping, Redshaw, Carl, Shi, Qisong, Sun, Wen Hua, Sun, Wen-Hua, Wang, Lin, Xing, Qifeng, Yue, Erlin, Zhang, Liping   +9 more
core   +1 more source

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  

Fracture mechanics analysis of arc shaped specimens for pipe grade polymers [PDF]

, 2009
Accepted ...
Argyrakis, C, Leevers, PS, Özbek, P
core   +1 more source

Characterization of ultrafiltration membranes by tracer's retention:Comparison of methods sensitivity and reproducibility [PDF]

, 2010
Previous studies have shown that the absolute membrane cut-off and the value quoted by the manufacturers may be very different because of differences in methodologies and testing conditions.
Causserand, Christel, Lorain, Olivier, Pierre, Gwenaelle, Rapenne, Sophie, Sauvade, Patrick, Schrotter, Jean-Christophe   +5 more
core   +2 more sources

Beneficial influence of nanocarbon on the aryliminopyridylnickel chloride catalyzed ethylene polymerization [PDF]

, 2013
A series of 1-aryliminoethylpyridine ligands (L1―L3) was synthesized by condensation of 2-acetylpyridine with 1-aminonaphthalene, 2-aminoanthracene or 1-aminopyrene, respectively.
Durand, Jérôme, Liu, Boping, Redshaw, Carl, Serp, Philippe, Sun, Wen-Hua, Yue, Erlin, Zhang, Liping   +6 more
core   +4 more sources

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

Direct Synthesis of Polyethylene Thermoplastic Elastomers Using Hybrid Bulky Acenaphthene-Based α-Diimine Ni(II) Catalysts

Molecules, 2023
Recently, polyolefin thermoplastic elastomers can be obtained directly using ethylene as a single feedstock via α-diimine nickel-catalyzed ethylene chain walking polymerization.
Hui Wang, Weiqing Lu, Mingmin Zou, Shengyu Dai   +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