“The process in which larger members and small molecules combine to form macromolecules is called polymerization. Small molecules are called monomers and large molecules are called polymers.” Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an original essay Curing is divided into two types. Addition polymerization. Condensation polymerization. Process during which a large number of small molecules (monomers) undergo a self-addition reaction to form macromolecules called addition polymers. The process during which a large number of molecules (monomers) combine to form macromolecules with the elimination of the side product, usually water, is called condensation polymerization, and the polymer is called a copolymer. TYPES OF POLYMERS: POLYETHYLENE: The first commercially produced polymer is also the simplest and most common: polyethylene. Its systematic name is poly(ethene), which means that it is a polymer obtained from monmer, ethene. Ethene is a small molecule containing two carbon atoms linked by a double bond and four hydrogen atoms, two bonded together. POLY(PROPENE): polypropylene, a synthetic resin obtained from the polymerization of propylene. Belonging to the important family of polyolefin resins, polypropylene is molded or extruded into many plastic products where toughness, flexibility, lightness and heat resistance are required. AMIDETIVE BONDING: One of the most common molecules in biochemistry is a polymer called a protein. These are made up of monomers known as amino acids and are joined by an amide bond. These linkages consist of a carboxyl group that reacts with an amino group to form the linkage and eliminate the water. This connection is the basis of another type of NYLON: nylons are made using two types of monomer. These are dicarboxylic acids and diamines. The first nylon synthesized used a monomer with a four-carbon chain with a carboxylic acid group on each end and another monomer with a six-carbon chain with an amino group on each end. Please note: this is just a sample. Get a custom paper from our expert writers now. Get a Custom Essay POLYESTER: Ester linkage is a carboxylic acid group in which the hydrogen has been replaced by carbon from another organic group. Polyesters are widely used as fibers for clothing and also for many beverage bottles. They are also used to make thin films for applications such as video cassettes.