نتایج جستجو برای: ethylene bis

تعداد نتایج: 75440  

Journal: :Electrochemistry 2022

Lithium metal batteries (LMB)-laminate-type full cells were prepared by combining a high-concentrated electrolytes lithium bis(fluorosulfonyl)imide (LiFSI)/ethylene carbonate (EC) and the 3-Dimensionally Ordered Macroporous (3DOM) Polyimide (PI) separator, cycle characteristics compared with cell using conventional polypropylene (PP) + polyethylene (PE) which is widely used in ion batteries. Th...

Journal: :Journal of the American Chemical Society 2002
Brenden Carlson Gregory D Phelan Werner Kaminsky Larry Dalton Xuezhong Jiang Sen Liu Alex K-Y Jen

We report new divalent osmium complexes that feature strong red metal-to-ligand-charge-transfer (MLCT) phosphorescence and electrophosphorescence. The general formula of the complexes is Os(II)(N-N)(2)L-L, where N-N is either a bipyridine or a phenanthroline and L-L is either a phosphine or an arsine. New polypyridyl ligands synthesized are 4,4'-di(biphenyl)-2,2'-bipyridine (15) and 4,4'-di(dip...

Journal: :International Journal of Biological Macromolecules 2021

Poly(ethylene terephthalate) hydrolase (PETase) from Ideonella sakaiensis 201-F6 was expressed and purified Escherichia coli to hydrolyze poly(ethylene (PET) fibers waste for its monomers recycling. Hydrolysis carried out at pH 8 30 °C found be the optimal condition based on measured monomer mono(2-hydroxyethyl) terephthalate (MHET) terephthalic acid (TPA) concentrations after 24 h reaction. Th...

2014
Mark Packer Mohan Rajan Edoardo Ligabue Peter Heiner

A new, single-piece, hydrophobic acrylic lens - the first constructed with a lens optic and haptics comprised of a hydroxyethyl methacrylate-polyethylene glycol phenyl ether acrylate-styrene copolymer, cross-linked with ethylene glycol dimethacrylate, and labeled as "glistening-free" - was recently introduced globally. Glistenings have been a significant source of clinical concern with previous...

A. Esmaeili Bafghi-Karimabad H. Safardoust L. Nejati-Moghadam M. Salavati-Niasari,

In this paper, tin dioxide nanoparticles were synthesized by a fast and simple co-precipitation method. For SnO2 preparation, we used ammonia as precipitation agent and bis (acetylacetone) ethylene diamineas as capping agent. By changing in SnCl4, acacen mole-ratio different morphologies were obtained. This semiconductor nanostructure has photo-catalyst activities and can ...

2010
Nicolas P. E. Barry Julien Furrer Julien Freudenreich Georg Süss-Fink

Cationic tetranuclear arene ruthenium complexes of the general formula [Ru4(p-cymene)4(N N)2(dhnq)2] comprising rectangular structures are obtained in methanol from the reaction of the dinuclear arene ruthenium precursor [Ru2(p-cymene)2(dhnq)2Cl2] (dhnq = 5,8-dihydroxy-1,4-naphthoquinonato) with pyrazine or bipyridine linkers [N N = pyrazine, 1; 4,4 -bipyridine, 2; 1,2-bis(4-pyridyl)ethylene, 3...

Journal: :Chemistry 2017
Munmun Mukherjee Yubai Zhou Yijing Dai AniL K Gupta V Reddy Pulgam Richard J Staples William D Wulff

A highly diastereoselective and enantioselective method for the multicomponent aziridination of chiral aldehydes has been developed with BOROX catalysts of the VANOL (3,3'-diphenyl-2,2'-bi-1-naphthol) and VAPOL (2,2'-diphenyl-(4-biphenanthrol)) ligands. Very high to perfect catalyst control is observed with most all substrates examined including aldehydes with chiral centers in the α- and β-pos...

2014
Angela X. Gao Longyan Liao Jeremiah A. Johnson

A panel of acid-labile bis-norbornene cross-linkers was synthesized and evaluated for the formation of acid-degradable brush-arm star polymers (BASPs) via the brush-first ring-opening metathesis polymerization (ROMP) method. An acetal-based cross-linker was identified that, when employed in conjunction with a poly(ethylene glycol) (PEG) macromonomer, provided highly controlled BASP formation re...

2014
Lian R. Hutchings Susan J. Roberts-Bleming

We describe here the first example of an iterative convergent strategy for the synthesis of dendritically branched polymers involving condensation coupling reactions of AB2 macromonomers. The macromonomers were synthesized by living anionic polymerization, initiated with 3-tertbutyldimethylsiloxy-1-propyllithium and end capped with 1,1-bis(4-tert-butyldimethylsiloxyphenyl) ethylene. Following a...

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