intermolecular force


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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 ?
Therefore, these nonpolar molecules require a lower temperature than lauric acid to attract molecules, due to their weak attractive intermolecular force. A lower temperature will reduce the movement of the molecules and ease the attractive force due to the temporary dipole.
In particular, the interplay between the material properties of the liquid (density, viscosity and surface tension) with slip length and (stabilizing) intermolecular forces will be considered.
It is the evidence that hydrogen bond or other intermolecular force between grafted MAH and polymer backbone might be formed.
After the reaction, there still exists polar -NH- group, which can form hydrogen bonds among the adjacent molecular chains and enhance the intermolecular force to a certain extent.
The solubility of polymer and solvent occurs while their attractive intermolecular forces are analogous, and it is also expected that materials with related cohesive energy density values are miscible.
The initial reduction of [T.sub.gd] may be attributed to the damage of intermolecular hydrogen bonds resulting in the reductions of intermolecular forces due to the invasion of water molecules.
Properties like increased strength in the bromocyclopentane is imparted by the strong intermolecular forces, the magnitude of the forces is the resultant of high dipole-dipole interaction.
After coming to some conclusions about which materials are soluble in which solvents, then the students can be introduced to the theory of intermolecular forces and the students could make predictions about solubility.
"We couldn't use glue, so we had to understand the intermolecular forces between the material and our testing devices," Hacopian said.
* Chain mobility because the molecules do not share chemical bonds with other molecules, instead held together by intermolecular forces
Szalewicz, "Symmetry-adapted perturbation theory of intermolecular forces," Wiley Interdisciplinary Reviews: Computational Molecular Science, vol.
The initial decrease in the hardness for small amount of filler content is likely caused by the fact that the hardness is dependent on the intermolecular forces and compactness of the material.

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