Definitions: Contract; Agreement; Contract for sale; Sale; Present sale; Conforming to Contract; Termination; Cancellation. (1) In this Article unless the context otherwise requires contract and agreement are limited to those relating to the present or future sale of goods. Contract for sale includes both a present sale of goods and a contract to sell goods at a future time. A sale consists in the passing of title from the seller to the buyer for a price (Section 2-401). A present sale means a sale which is accomplished by the making of the contract. (2) Goods or conduct including any part of a performance are conforming or conform to the contract when they are in accordance with the obligations under the contract.
A single polymer molecule may consist of hundreds to a million monomers and may have a linear, branched, or network structure. Covalent bonds hold the atoms in the polymer molecules together and secondary bonds then hold groups of polymer chains together to form the polymeric material. Copolymers are polymers composed of two or more different types of monomers.
If the monomers have double bonds between carbons, from addition reactions polymers can be synthesized. These polymers are known as addition polymers. In some of the polymerization reactions, when two monomers are joined, a small molecule like water is removed. Such polymers are condensation polymers.