Module 8 Portage 219 Organic Chemistry Exam Questions With 100%Verified AnswersA+GRADED

Module 8 Portage 219 Organic Chemistry Exam Questions With 100%Verified AnswersA+GRADED Polymer - correct answer...large molecule made by repetitive linking of smaller units (monomers) Macromolecule - correct answer...very large molecule composed of thousands of covalently bonded atoms (ex: polymer) 1. natural (in nature) 2. synthetic (in lab) - correct answer...two ways polymers are made rubber, carbs: starch & cellulose, proteins, nucleic acids DNA, RNA - correct answer...natural polymers nylon, teflon, styrofoam, polyethylene, Dacron, - correct answer...synthetic polymers 1. method of formation 2. final composition 3. stereochemical orientation - correct answer...3 main ways to differentiate polymers 1. chain-growth 2. step-growth - correct answer...Two classifications of Synthetic polymers addition polymers - correct answer...chain growth polymers are also know as: made by addition of one monomer unit to another in a repetitive pattern - correct answer...How are chain growth polymers made? chain growth polymerization - correct answer...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 - correct answer...what 2 things stops chain growth polymerization? Teflon - correct answer...chain-growth polymer: polytetrafluoroethylene monomer: F2C=CF2 nonstick coating, goretex, electrical insulator, chem-resistant coating Saran - correct answer...chain-growth polymer: polyvinylidenedichloride monomer: H2C=CCl2 cling-wrap Polypropylene - correct answer...chain-growth polymer: polypropylene monomer: H2C=CHCH3 carpet fibers, car parts, toys, packaging, houseware Orlon, Acrilan, Creslan - correct answer...chain-growth polymer: polyacrylonitrile monomer: H2C=CH(CN) textiles/fibers, carpets, upholstery Polyvinyl Acetate - correct answer...chain-growth polymer: polyvinyl acetate monomer: H2C=CH(OCOCH3) elmers glue, silly putty, latex paints Polyvinyl alcohol - correct answer...chain-growth polymer: polyvinyl alcohol monomer: H2C=CH(OH) eye med- artificial tears Plexiglass (Lucite) - correct answer...chain-growth polymer: polymethylmethacrylate monomer: H2C=C9CH3)COOCH3 clear plastic sheets , blocks, and tubing the final polymer retains all of the atoms of the monomer - correct answer...The defining characteristic of chain-growth polymers step growth polymerization - correct answer...formed by the reaction between 2 different functional groups on different monomer molecules with the accompanying loss of some small molecule (typically water) The final polymer chain does NOT include all the atoms initially present in the monomer molecules - correct answer...The defining characteristic of step-growth polymers condensation polymers - correct answer...step-growth polymers also known as: typically di or polyfunctional - correct answer...functionality of step-growth monomers alternating order in the final polymer chain - correct answer...appearance of monomers in step-growth polymerization by carbon-heteroatom bond formation - correct answer...how step-growth polymers generally grow carbon-carbon bond formation - correct answer...how chain-growth polymers generally grow Polyamide (Nylon) - correct answer...formed by combining 1,6-diaminohexane (amine) with 1,6-hexandioic acid (carboxylic acid) amine functionality reacts with carboxylic acid functionality to form an amide with a corresponding loss of a water molecule cellulose, polypetide chains, beta-Hydroxybutyric acid - correct answer...naturally occurring step-growth/ condensation polymer examples Lexan - correct answer...step-growth polymer: polycarbonate eye glasses, auto parts, drinking glasses Kevlar - correct answer...step-growth polymer: polyamide body armor, tires, helmets Dacron, Mylar - correct answer...step-growth polymer: polyester eletric/thermal insulation, helium balloons, artificial limbs 1. free radical 2. cationic 3. anionic - correct answer...three main mechanisms for addition/ chain-growth polymerization begins by creating a reactive intermediate that starts the chain reaction - correct answer...For all three main addition mechanisms, how does polymerization begin? free-radical addition polymerization - correct answer...a monomer reacts with a free-radical initiator to create a free-radical free-radical - correct answer...an atom or a group of atoms that has one unpaired electron