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.
Some familiar house-hold synthetic polymers include: Nylons in textiles and fabrics, Teflon in non-stick pans, Bakelite for electrical switches, polyvinyl chloride (PVC) in pipes, etc. The common PET bottles are made of a synthetic polymer, polyethylene terephthalate.he back bones of common synthetic polymers such as polythene and polystyrene, poly acrylates are made up of carbon-carbon bonds, whereas hetero chain polymers such as polyamides, polyesters, polyurethanes polysulfides and polycarbonates have other elements (e.g. oxygen, sulfur, nitrogen) inserted along the backbone.