@jef Do not post on things you are not really sure about and do not "borrow" terms to use incorrectly.
The term "unimer" is actually a made-up word when a scientist cannot properly describe something, and it is not proper scientific practice to use the term (hence why it is so uncommon).
To be frank, the term unimer is quite unnecessary.
I'll agree with you there
Definition of a unimer:
A unimer is a special case polymer in which that polymer belongs to a group of polymers.
No not really. Arkcon already gave a better definition than yours.
A monomer (simply put) is an element.
NO IT IS NOT. An element has a particular meaning in chemistry DO NOT misuse it when it is quite easy to use a different phrase.
A monomer is a molecule that reacts with other monomers to form polymers. Monomers are the subunits of polymers. If only a single type of monomer reacts that is a homopolymer if there are two or more different monomers they produce co-polymers.
A polymer is 2 or more elements that have bonded together (which is a molecule).
Again do not misuse the term elements. Also most definitions of polymers talk about at least 3 monomers. If 2 monomers react together that is a dimer.
A unimer is then a term that is sometimes used to define a single polymer that belongs to a group of other polymers.
No a single polymer chain inside a solid block of nylon fits this description but is unlikely to be called a unimer.
So polymer and unimer are actually synonymous terms
No they are not; surfactants and polymers are not the same thing.