Matsci 4.3

describes carbon atoms that participate in double or triple covalent bonds and, therefore, do not bond to a maximum of four other atoms.

describes a carbon atom that participates in only single covalent bonds with four other atoms.

an aggregate of ribbonlike polymer crystallites (lamellae) radiating from a common central nucleation site; the crystallites are separated by amorphous regions.

- is a stable molecule from which a polymer is synthesized

is a compound of high molecular weight (normally organic) the structure of which is composed of chains of small repeat units.

- is the most fundamental structural unit found in a polymer chain. A polymer molecule is composed of a large number of repeat units that are linked together and successively repeated.

- is a huge molecule made up of thousands of atoms.

for Polymers refers to composition, not the structure of a repeat unit

refers to atomic arrangements within and interconnections between polymer molecules.

- is the sum of the atomic weights of all the atoms in a molecule.