scholarly journals PDMS with Tunable Side Group Mobility and Its Highly Permeable Membrane for Removal of Aromatic Compounds

2022 ◽  
Author(s):  
Yang Pan ◽  
Yanan Guo ◽  
Jiangying Liu ◽  
Haipeng Zhu ◽  
Guining Chen ◽  
...  
Keyword(s):  
Aromatic Compounds ◽  
Side Group ◽  
Group Mobility ◽  
Permeable Membrane

PDMS with Tunable Side Group Mobility and its Highly Permeable Membrane for Removal of Aromatic Compounds

2021 ◽  
Author(s):  
Yang Pan ◽  
Yanan Guo ◽  
Jiangying Liu ◽  
Haipeng Zhu ◽  
Guining Chen ◽  
...  
Keyword(s):  
Aromatic Compounds ◽  
Side Group ◽  
Group Mobility ◽  
Permeable Membrane

scholarly journals PDMS with Tunable Side Group Mobility and Its Highly Permeable Membrane for Removal of Aromatic Compounds

2022 ◽  
Author(s):  
Yang Pan ◽  
Yanan Guo ◽  
Jiangying Liu ◽  
Haipeng Zhu ◽  
Guining Chen ◽  
...  
Keyword(s):  
Aromatic Compounds ◽  
Side Group ◽  
Group Mobility ◽  
Permeable Membrane

The Sn mechanism in aromatic compounds. XXXVIII. Comparative reactivity of 1-Halogeno-2,6-dinitrobenzenes and some other halogenonitrobenzenes

1969 ◽  
Vol 22 (12) ◽  
pp. 2555 ◽  
Author(s):  
MEC Biffin ◽  
J Miller ◽  
R Roper
Keyword(s):  
Nitro Group ◽  
Aromatic Compounds ◽  
Steric Effects ◽  
Reference Standard ◽  
Group Mobility ◽  
Steric Interactions ◽  
Leaving Group ◽  
Typical Range ◽  
Comparative Reactivity

The reactivity of 1-halogeno-2,6-dinitrobenzenes with methanolic methoxide has been studied quantitatively and compared with the results of similar studies of o- and p-halogenonitrobenzenes and 1-halogeno- 2,4-dinitrobenzenes. Adverse steric interactions of the ortho-nitro group are very small in the o-halogenonitro- and 1-halogeno-2,4- dinitrobenzenes. The interactions are substantially larger in the reactions of 1-halogeno-2,6-dinitrobenzenes in displacement of Cl, Br, and I, but not of F, but they are small compared to steric interactions found in many other classes of reactions. ��� Steric effects are observed as a reduction in rates affecting values of the Substituent Rate Factors of the o-nitro group, and affecting also the mobility as a leaving group of Cl, Br, and I, but not of F. However, since Cl is the usual reference standard for leaving group mobility, that of F appears as having an unusually high value. Nevertheless a depression of the mobility of iodine from its typical range is also evident.

Pattern formation in the splay Freedericks transition of a nematic side-group polysiloxane

1993 ◽  
Vol 3 (6) ◽  
pp. 865-889 ◽  
Author(s):  
Norbert Schwenk ◽  
Hans Wolfgang Spiess
Keyword(s):  
Pattern Formation ◽  
Side Group

1679 Fatty acid profile, sensory traits, and aromatic compounds of chops from lambs fed ground woody plants as roughage in feedlot finishing diets

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 818-818
Author(s):  
K. R. Wall ◽  
C. R. Kerth ◽  
T. R. Whitney ◽  
S. B. Smith ◽  
J. L. Glasscock ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Aromatic Compounds ◽  
Woody Plants ◽  
Finishing Diets

Tandem Mass Spectrometric Evaluation of Core Structures of Aromatic Compounds after Catalytic Deoxygenation

2017 ◽  
Author(s):  
Xueming Dong
Keyword(s):  
Aromatic Compounds ◽  
Supported Catalyst ◽  
Mass Spectrometric ◽  
Spectrometric Method ◽  
Mass Spectrometric Method ◽  
Aromatic Rings ◽  
Tandem Mass Spectrometric ◽  
Catalytic Deoxygenation ◽  
Oxygen Atoms

Catalytic deoxygenation of coal enhances the stability and combustion performance of coal-derived liquids. However, determination of the selectivity of removal of oxygen atoms incorporated in or residing outside of aromatic rings is challenging. This limits the ability to evaluate the success of catalytic deoxygenation processes. A mass spectrometric method, in-source collision-activated dissociation (ISCAD), combined with high resolution product ion detection, is demonstrated to allow the determination of whether the oxygen atoms in aromatic compounds reside outside of aromatic rings or are part of the aromatic system, because alkyl chains can be removed from aromatic cores via ISCAD. Application of this method for the analysis of a subbituminous coal treated using a supported catalyst revealed that the catalytic treatment reduced the number of oxygen-containing heteroaromatic rings but not the number of oxygen atoms residing outside the aromatic rings.<br>

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