CHEM 001B Lecture Notes - Lecture 14: Polyethylene Terephthalate, Carbon Nanotube, Vinyl Acetate
Document Summary
Allotropes : different molecular structures of an element. All carbon atoms sp 3 hybridized; tetrahedral configuration. Two-dimensional covalent network of sp 2 hybridized carbon atoms in sheets of. Allotropes of carbon: graphite fused six-membered rings. Three-dimensional network of sp 2 hybridized carbon atoms in fused five- and six-membered rings to form molecular clusters of 60, 70, or more carbon atoms. Polymer (macromolecule) : a very large molecule with high molar mass formed by bonding together a large number of small molecules of low molecular mass. Monomer : small molecule that bonds with others like it to form polymers. Oligomer : molecule that contains a few monomers; the middle ground between. Copolymer : macromolecule formed from the chemical combination of two. Heteropolymer : polymer made of three or more different monomer units. Homopolymer : a polymer composed of only one kind of monomer unit different monomers (e. g. , poly(ethylene-co-vinyl alcohol) For water bottles, it"s polyethylene terephthalate (pete)
