Organic Chemistry
[ defination]question and
answers...
large molecule made by repetitive linking of smaller units (monomers) - ANSWERS-Polymer
very large molecule composed of thousands of covalently bonded atoms (ex: polymer) -
ANSWERS-Macromolecule
two ways polymers are made - ANSWERS-1. natural (in nature)
2. synthetic (in lab)
natural polymers - ANSWERS-rubber, carbs: starch & cellulose, proteins, nucleic acids DNA, RNA
synthetic polymers - ANSWERS-nylon, teflon, styrofoam, polyethylene, Dacron,
3 main ways to differentiate polymers - ANSWERS-1. method of formation
2. final composition
3. stereochemical orientation
Two classifications of Synthetic polymers - ANSWERS-1. chain-growth
, 2. step-growth
chain growth polymers are also know as: - ANSWERS-addition polymers
How are chain growth polymers made? - ANSWERS-made by addition of one monomer unit to
another in a repetitive pattern
A polymerization involving sequential addition to monomers that are unsaturated (C=C) or have
some other reactive functional groups (particularly ethylene and derivatives) - ANSWERS-chain
growth polymerization
what 2 things stops chain growth polymerization? - ANSWERS-1. intervention
2. consumption of all available monomers
chain-growth
polymer: polytetrafluoroethylene
monomer: F2C=CF2
nonstick coating, goretex, electrical insulator, chem-resistant coating - ANSWERS-Teflon
chain-growth
polymer: polyvinylidenedichloride
monomer: H2C=CCl2
cling-wrap - ANSWERS-Saran
chain-growth
polymer: polypropylene
monomer: H2C=CHCH3