intermolecular force

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Related to intermolecular: Intermolecular interactions

intermolecular force

[‚in·tər·mə′lek·yə·lər ′fōrs]
(physical chemistry)
The force between two molecules; it is that negative gradient of the potential energy between the interacting molecules, if energy is a function of the distance between the centers of the molecules.
References in periodicals archive ?
For example, the aromatic ring with rigid and the polarization structure is introduced in the polymer chain [14], on one hand which can induce intermolecular forces to form intermolecular association in copolymer solution at low concentration; on the other hand, the resistance of molecular motion increases due to the steric effect of the rigid groups, and the viscosity of polymer solution decreases to a lesser extent.
In the crystal molecular structure of c4, whose electron-withdrawing chloride group is located at meta-position like the electron- donating methyl group of c2, only intermolecular hydrogen bonds were found.
In environmental stress cracking, the chemical agent permeates into the molecular structure of the plastic, interfering with the intermolecular forces bonding the polymer chains, allowing accelerated molecular disentanglement.
It is important to note that the intermolecular forces dominate the precursor film, for both the evaporative and nonevaporative liquids, which has a significant effect on the bulk system.
adiabatic compressibility(Pad), intermolecular free length(Lf), relaxation time (X)), free volume (Vf), internal pressure (R), acoustic impedance (Z), surface tension(S), attenuation(a/f2), Rao's constant(R), molar volume (Vm), cohesive energy(CE) showed that there are presence of specific molecular interactions in ethanol and ethyl/methyl-4-(aryl)-6-methyl-2 oxo/thioxo-1,2,3,4-tetrahydropyridimi-dine-5-carboxylate molecules, which are responsible to increase absorption and transmission.
Trees transport water through xylem tubes using intermolecular forces.
Gecko toepads adhere through a combination of weak intermolecular forces, called van der Waals forces, and frictional adhesion.
Among his discoveries are: (i) density scaling of viscoelastic properties and its relation to the steepness of the intermolecular repulsive potential; (ii) the invariance of relaxation times at various phase transitions; (iii) the non-ideality of polymer isotope mixtures and dynamic heterogeneity in miscible blends; (iv) phenomena in rubbery networks, including properties of double network rubbers and the origin of the Mullins effect; and (v) elastomeric coatings that enhance the resistance of hard substrates to impact penetration, technology applicable to military armor and civilian infrastructure protection.
The draft guidance interprets "chemical action" to mean, "Through either chemical reaction or intermolecular forces or both, the product: mediates a bodily response at the cellular or molecular level, or combines with or modifies an entity so as to alter that entity's interaction with the body of man or other animals.
neutral, having no impact on intermolecular interactions).
BANKING AND CREDIT NEWS-August 1, 2011--Morgan Stanley, JP Morgan, Barclays to arrange Intermolecular floatation(C)2011 M2 COMMUNICATIONS http://www.

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