Definitions
PEX
What is cross-linked polyethylene?
When polymer chains grow off of another polymer chain
What is branching
reaction used to make chain addition polymers
What is radical polymerization?
the structure of high density polymers
what is crystalline?
When a polymer chain bonds to another polymer chain
What is Crosslinking
reaction that make stereo regular polymers
What is Ziegler-Natta?
Italian chemist who discovered a way to make linear polymers
Who is Giulio Natta?
structure of branched polymers
What is Amorphous?
A polymer with irregular stereo chemistry
What is Atactic?
a radical reaction where the hydrogen is pulled off a carbon
What is hydrogen abstraction?
a property of crystalline polymers
What is opaque, strong
A polymer with all the substituents on the same side (Z configuration)
What is Isotactic?
Catalyst used to make linear polymers via Zeigler-Natta
What is Titanium tetrachloride?
use for polystyrene
What are packing peanuts, cups, or takeout containers?
a polymer with a trans substituents (z configuration)
What is Syndiotactic
Termination step for anionic addition polymerization
What is quenching or adding water/alcohol?