2,20) In this study, the hydroxyl groups introduced into PUA macromolecules possibly facilitate in the establishment of this homogeneous structure due to the hydrogen bonding interaction formed from the hydroxyl groups with carbonyl, amide, ether, and other electronegative
acceptors in the PUA.
To reduce pain, the somato-sensory strip can be shifted from an electronegative
state in which the cortex is active, and the patient is perceiving the pain, to an electropositive state in which the brain is "off," dialing down pain sensitivity.
Criteria for the occurrence of hydrogen bond is that if the distance between hydrogen and electronegative
atoms in the range from 2.
Here, Y is an electronegative
atom and X possesses lone pairs of electrons.
Sulfur forms covalent bonds similar to oxygen, but differs from oxygen by being less electronegative
An interionic bond forms when a highly electropositive metal ion is combined with a highly electronegative
R1234yf has all the strongly electronegative
fluorine atoms on one side of the double bond, which results in a large dipole moment ([mu] = 2.
Analysis of FTIR spectra indicated the presence and role of electronegative
functional groups on algal surface responsible for binding of Cr (VI) ions.
2007), the effect of chitosan on fungi activity is due to possible alterations in the membrane functions, through interactions with the chitosan electronegative
surface, leading to changes of permeability, metabolic disturbances and death of the cell.
Additionally, highly electronegative
atoms such as oxygen and fluorine tend to remove electrons from other atoms.
4] interacts with a substrate that is similarly electronegative
In this regard it was demonstrated by Mears and Brown (4) in 1938, that complete cathodic protection was achieved when the structure cathodes were polarized electro-negatively to the most electronegative
anode site on the structure.