Articles with "phenylacetylene" as a keyword



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Shape/Crystal Facet of Ceria Induced Well-Dispersed and Stable Au Nanoparticles for the Selective Hydrogenation of Phenylacetylene

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Published in 2019 at "Catalysis Letters"

DOI: 10.1007/s10562-018-02648-9

Abstract: A series of CeO2 with the morphology of nanocube (NC), nanopolyhedron (NP) and nanorod (NR) were synthesized by hydrothermal method as substrates to support monometallic Au catalysts. Insight into support morphology-dependent the property of active… read more here.

Keywords: selective hydrogenation; dispersed stable; hydrogenation phenylacetylene; well dispersed ... See more keywords
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Palladium nanoparticles supported onto stereocomplexed poly(lactic acid)-poly(ε-caprolactone) copolymers for selective partial hydrogenation of phenylacetylene

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Published in 2017 at "Rendiconti Lincei"

DOI: 10.1007/s12210-017-0600-8

Abstract: AbstractPalladium nanoparticles, generated by hydrogen reduction of Pd acetate, coordinated to a stereocomplexed 2,2′-bipyridine end-functionalized poly(lactic acid)-poly(ε-caprolactone) copolymer showed enhanced catalytic activity and chemoselectivity for the partial reduction of phenylacetylene compared to the reference system… read more here.

Keywords: poly lactic; acid poly; caprolactone; poly caprolactone ... See more keywords
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Synthesis and oxygen permeation of novel well-defined homopoly(phenylacetylene)s with different sizes and shapes of oligosiloxanyl side groups

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Published in 2018 at "Journal of Membrane Science"

DOI: 10.1016/j.memsci.2018.04.031

Abstract: Abstract Six new silicon-containing phenylacetylenes having short oligosiloxane substituents with different sizes and shapes have been synthesized. Homopolymerization of the monomers yielded the corresponding homopoly(substituted phenylacetylene)s with high molecular weights and good solubility. These comb-shaped… read more here.

Keywords: oxygen permeation; oxygen; different sizes; sizes shapes ... See more keywords
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Pd@SBA-15 nanocomposite catalyst: Synthesis and efficient solvent-free semihydrogenation of phenylacetylene under mild conditions

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Published in 2017 at "Microporous and Mesoporous Materials"

DOI: 10.1016/j.micromeso.2016.12.025

Abstract: Abstract Pd0 nanoparticles (NPs) have been fabricated on SBA-15 using a facile, rapid and highly reproducible microwave-assisted reduction by solvent method. The as-synthesized Pd@SBA-15 nanocomposite was well characterized using low angle and wide angle XRD,… read more here.

Keywords: semihydrogenation phenylacetylene; phenylacetylene; catalyst; solvent free ... See more keywords
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Immobilization of helical poly(phenylacetylene)s having L-phenylalanine ethyl ester pendants onto silica gel as chiral stationary phases for HPLC

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Published in 2017 at "Polymer"

DOI: 10.1016/j.polymer.2017.10.018

Abstract: Abstract Novel one-handed helical copoly(phenylacetylene)s bearing a small amount of 3-(triethoxysilyl)propyl residues (CPAs 1–4) were synthesized, and efficiently chemically immobilized onto silica gel by the intermolecular polycondensation of the triethoxysilyl groups. Their chiral recognition abilities… read more here.

Keywords: immobilization; onto silica; type csps; csps ... See more keywords
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Cis-Cisoid Helical Structures of Poly(3,5-disubstituted phenylacetylene)s Stabilized by Intramolecular n → π* Interactions

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Published in 2018 at "Macromolecules"

DOI: 10.1021/acs.macromol.8b00078

Abstract: A pair of enantiomeric cis-poly(phenylacetylene)s (PPAs) substituted at the meta-positions of pendant phenyl rings by an achiral methoxycarbonyl group and a chiral 1-methylpropyloxycarbonyl group (i.e., sP-Me-C4/rP-Me-C4) as well as two cis-PPAs bearing either just a… read more here.

Keywords: structures poly; helical structures; cis cisoid; phenylacetylene ... See more keywords
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Selective Hydrogenation of Phenylacetylene on a Pd-Containing Catalyst Based on a Polymer Layered Substrate

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Published in 2020 at "Russian Journal of Applied Chemistry"

DOI: 10.1134/s1070427220020159

Abstract: Abstract A Pd-containing catalyst based on a layered substrate obtained by the polymerization of 2,3,6,7,10,11-hexahydroxytriphenylene and terephthalic aldehyde was developed and studied. The process of liquid-phase hydrogenation of phenylacetylene was studied on the obtained catalyst.… read more here.

Keywords: catalyst; hydrogenation phenylacetylene; layered substrate; containing catalyst ... See more keywords
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Tuning the activity and selectivity of phenylacetylene hydrosilylation with triethylsilane in the liquid phase over size controlled Pt nanoparticles

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Published in 2018 at "Catalysts"

DOI: 10.3390/catal8010022

Abstract: Pt nanoparticles with controlled sizes between 1.6–7.0 nm were anchored onto the surface and pores of SBA-15 silica support. The catalysts were characterized by TEM-ED, BET, XRD, and ICP-MS techniques and were tested in liquid… read more here.

Keywords: hydrosilylation; liquid phase; triethylsilane; phenylacetylene ... See more keywords