Results 71 to 80 of about 19,345,362 (220)

Building on Cram's legacy: stimulated gating in hemicarcerands. [PDF]

open access: yes, 2014
CONSPECTUS: Donald Cram's pioneering Nobel Prize-winning work on host-guest molecules led eventually to his creation of the field of container molecules. Cram defined two types of container molecules: carcerands and hemicarcerands.
Helgeson, Roger C, Houk, KN, Liu, Fang
core   +2 more sources

Aromatic Volatile Organic Compounds in Croatian Domestic Environments: Initial Findings

open access: yesAtmosphere
This study aimed to investigate the concentrations of BTEX (benzene, toluene, ethylbenzene, ortho-xylene (o-), and meta and para-xylene (m-,p-)) in Croatian households between December 2023 and January 2025.
Tajana Horvat   +5 more
doaj   +1 more source

Volatile organic compounds and consumer preference for meat from suckling goat kids raised with natural or replacers milk [PDF]

open access: yes, 2019
Most of European Union goats are slaughtered with carcase weights between 5 kg and 11 kg. Some farmers rear kids with milk replacers to produce cheese with the dams’ milk.
Alcalde Aldea, María Jesús   +6 more
core   +3 more sources

Reaktionskinetische Untersuchungen der heterogenen Gasphasenoxydation von p-Xylol

open access: yesCHIMIA, 1971
The kinetic of the heterogeneous gasphase oxidation of p-xylene on a vanadiumoxide catalyst at the temperature range of 315 bo 435 °C has been studied. The experimental data were best fitted by a steady state adsorption model based on the adsorption of ...
P. Felix, G. Gut
doaj   +1 more source

OPTIMIZATION OF FREE-VOLUME THEORY PARAMETERS FOR TERNARY POLYMERIC COATINGS FROM BINARY WEIGHT LOSS EXPERIMENTS [PDF]

open access: yes
In this work free-volume parameters needed for poly(styrene) ñ p-xylene-tetrahydrofuran coating and poly(methylmethacrylate) ñ tetrahydrofuran ñ ethylbenzene coatings were estimated by minimizing the difference between model predicted residual solvent ...
Raj Kumar Arya
core  

Amino-functionalized poly(l-lactide) lamellar single crystals as a valuable substrate for delivery of HPV16-E7 tumor antigen in vaccine development [PDF]

open access: yes, 2015
Background: Poly(L-lactide) (PLLA) is a biodegradable polymer currently used in many biomedical applications, including the production of resorbable surgical devices, porous scaffolds for tissue engineering, nanoparticles and microparticles for the ...
Accardi, Luisa   +8 more
core   +2 more sources

Qualitative analysis of aromatic compounds via 1D TOCSY techniques

open access: yesMagnetic Resonance Letters
The aromatic compounds, including o-xylene, m-xylene, p-xylene, and ethylbenzene, primarily originate from the catalytic reforming of crude oil, and have a wide variety of applications.
Wenbo Dong   +5 more
doaj   +1 more source

Dealumination of mordenite zeolite and its catalytic performance evaluation in m-xylene isomerization reaction

open access: yesBulletin of the Chemical Society of Ethiopia, 2017
Mordenite zeolite with Si/Al = 18 was successfully synthesized by the hydrothermal method. This zeolite was modified by partially dealuminated in HNO3 at 70 °C. Our analysis showed that the surface area of modified mordenite was increased more than that
Z. V. Rahbari   +2 more
doaj   +1 more source

Tetraphenolate niobium and tantalum complexes for the ring opening polymerization of ε-caprolactone [PDF]

open access: yes, 2015
Reaction of the pro-ligand α,α,α′,α′-tetra(3,5-di-tert-butyl-2-hydroxyphenyl-p-)xylene-para-tetraphenol (p-L¹H₄) with two equivalents of [NbCl₅] in refluxing toluene afforded, after work-up, the complex {[NbCl₃(NCMe)]₂(μ-p-L¹)}·6MeCN (1·6MeCN).
Al-Khafaji, Y.   +6 more
core   +1 more source

Kinetic regimes in the tandem reactions of H-BEA catalyzed formation of p-xylene from dimethylfuran

open access: yes, 2016
Reaction kinetics and pathways of p-xylene formation from 2,5-dimethylfuran (DMF) and ethylene via cascade reactions of Diels–Alder cycloaddition and subsequent dehydration over H-BEA zeolite (Si/Al = 12.5) were characterized.
C. Luke Williams   +8 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy