A polymer is a long molecule that's made up of
repeating units of some smaller molecule, sort of
like beads on a string. Proteins are polymers
of amino acids. Carbohydrates are polymers of
sugars, except for simple sugars, which are just 1
or 2 sugars in a molecule.
Hydrophobic means: [hydro = water] + [phobic
= afraid of] so hydrophobic molecules are
'afraid' of water. Think of oil and water - the
oil molecules sit in a layer on top of the water
and don't stay mixed with the water molecules.
Here's a link with info about waterproof
A polymer is a molecule which is made up of
many repeating smaller molecules, like a chain
formed from many links. The molecules that make up
a polymer chain can either all be the same, like
the common plastic polypropylene, or different,
like your DNA which is made up of 4 different
types of molecules (called base pairs).
Hydrophobic substances are substances that
do not tend to mix or interact with water. For
example, a liquid that is hydrophobic, like oil,
will separate from water. Or, when water is placed
on a hydrophobic surface, the water will form
droplets instead of spreading out and wetting the
surface. Some polymers are hydrophobic, and so
some mascaras do include polymers that make them
However, many mascaras also include different
types of wax, which are also hydrophobic. Waxes
are not usually considered polymers, since
they often consist of a head group, with long,
hydrophobic carbon chains attached to it. The
atomic structure of this head group is different
from the atoms that form the chain, which makes
waxes different from polymers.
Click Here to return to the search form.