Chp. 15: Polyethylene: The Most Common Polymer Flashcards
1
Q
Hydrocarbons
A
Carbon atoms bond with hydrogen covalently to acquire octet
2
Q
Four main paraffins
A
Methane CH4 Ethane C2H6 Propane C3H8 Butane C4H10 CnH2n+2
3
Q
Double Bond
A
two bonds between two atoms
4
Q
Triple Bond
A
three bonds between two atoms
5
Q
Ethylene
A
and double bond between carbon and four hydrogen atoms
6
Q
cracking
A
splitting ethane molecule into ethylene and hydrogen
7
Q
Addition Polymerization
A
formation of polyethylene involving high temperatures, high pressures, and catalysts.
8
Q
Unpaired electrons
A
an atoms with an unbounded electron
9
Q
chain branching
A
where a chain of polymer branches out
10
Q
Results of short chain branching
A
lower density material
lower crystalline content
weaker materials
