Organic Chemistry Module 8 Portage 219 TEST EXAM FINALS QUESTIONS WITH 100% Verified Solutions.

Organic Chemistry Module 8 Portage 219 TEST EXAM FINALS QUESTIONS WITH 100% Verified Solutions. Polymer large molecule made by repetitive linking of smaller units (monomers) Macromolecule very large molecule composed of thousands of covalently bonded atoms (ex: polymer) 1. natural (in nature) 2. synthetic (in lab) two ways polymers are made rubber, carbs: starch & cellulose, proteins, nucleic acids DNA, RNA natural polymers nylon, teflon, styrofoam, polyethylene, Dacron, synthetic polymers 1. method of formation 2. final composition 3. stereochemical orientation 3 main ways to differentiate polymers 1. chain-growth 2. step-growth Two classifications of Synthetic polymers addition polymers chain growth polymers are also know as: made by addition of one monomer unit to another in a repetitive pattern How are chain growth polymers made? chain growth polymerization A polymerization involving sequential addition to monomers that are unsaturated (C=C) or have some other reactive functional groups (particularly ethylene and derivatives) 1. intervention 2. consumption of all available monomers what 2 things stops chain growth polymerization? Teflon chain-growth polymer: polytetrafluoroethylene monomer: F2C=CF2 nonstick coating, goretex, electrical insulator, chem-resistant coating Saran chain-growth polymer: polyvinylidenedichloride monomer: H2C=CCl2 cling-wrap Polypropylene chain-growth polymer: polypropylene monomer: H2C=CHCH3 carpet fibers, car parts, toys, packaging, houseware Orlon, Acrilan, Creslan chain-growth polymer: polyacrylonitrile monomer: H2C=CH(CN) textiles/fibers, carpets, upholstery Polyvinyl Acetate chain-growth polymer: polyvinyl acetate monomer: H2C=CH(OCOCH3) elmers glue, silly putty, latex paints Polyvinyl alcohol chain-growth polymer: polyvinyl alcohol monomer: H2C=CH(OH) eye med- artificial tears Plexiglass (Lucite) chain-growth polymer: polymethylmethacrylate monomer: H2C=C9CH3)COOCH3 clear plastic sheets , blocks, and tubing.