water-hating, as opposed to hydrophilic, or water-loving. Our DriClime® underwear, for example, is largely hydrophobic, since its mission is to pass sweat away from your skin and then have it evaporate. We avoid hydrophilic yarn because it gets soggy, and thus heavy and cold.
Water-repellant. That property of a substrate (e.g., the image part of a lithographic plate), which causes it to repel water and permit an oil-based ink to adhere. The opposite of hydrophilic. See HYDROPHILIC
Means water insoluble and refers to non-polar properties as opposed to polar properties of water. Water soluble, or hydrophilic, molecules do not easily mix with hydrophobic molecules or solutions. Oil is a hydrophobic substance and mixtures of oily and watery molecules tend to minimize their contact surface. Thus the observed separation of oil from water when left standing. However, oil can be partially mixed with water when shaking a container vigorously indicating that the separation or mixing of molecules is determined by the energy of molecular interaction. The energy to overcome these molecular interactions can be provided by mechanical force (shaking) or high temperature. The latter is a well known observation; salts, sugars, and fats normally mix better in hot than cold water, and hot water is better in removing stains form dishes or cloths.
Literally: “fear of water.” Synonymous with lipophilic. Can be used to describe substances that are not water soluble. Most drugs are hydrophobic(lipophilic), and are converted to water-soluble hydrophilic metabolites by biotransforming enzymes.
hydrophobicity; hydrophobic group. A nonpolar molecule or group that has little affinity for water. Hydrophobic groups on molecules in solution tend to turn in on themselves or clump together with other hydrophobic groups because they are unable to disrupt the network of strong hydrogen bonds in the water around them.
"water-hating"; refers both to stationary phases that are not compatible with water and to molecules in general that have little affinity for water. Hydrophobic molecules have few polar functional groups; most are hydrocarbons or have high hydrocarbon content.
The word hydrophobic can be broken into is two halves- hydro- which means water, and phobic- which means afraid. A hydrophobic amino acid is one which does not like to be near water. It avoids water by associating with other hydrophobic amino acids. Hydrophobic amino acids do not have charges. Hydrophilic amino acids (philic- means love) do like to be associated with water, and do have charges. An example of a hydrophilic amino acid is glutamate.
Literally means "water hating". This describes a molecule or part of a molecule that prefers to be in an environment where there is no water. It means repelling, tending not to combine with, or incapable of dissolving in water.
Water Hating. Most synthetic fibers, including polypropylene, repel rather than absorb water. A treatment can be added to polypropylene fibers to enable them to be just the opposite, or water loving (hydrophilic).
Materials which repel or resist water. Used when moisture is definitely an issue. These water resistant films can be used in applications such as anti-fog and products where water is detrimental to the efficient functioning of a process.
Gr. hydro: water + phobia: fear] • Molecules and amino acid side chains, which are mainly hydrocarbons (compounds of C and H with no charged groups or polar groups), have a lower energy when they are clustered together than when they are distributed through an aqueous solution. Because of their attraction for one another and their reluctance to mix with water they are called "hydrophobic." Oil is a hydrophobic substance; phenylalanine is a hydrophobic animo acid in a protein. (Contrast with hydrophilic.)
It is often referred to as water hating. It adverts both to stationary phases not compatible with water and molecules with little affinity for water. Hydrophobic molecules have few polar functional groups and are mostly hydrocarbons or have high hydrocarbon content.