Chapter 13 - Polymeric Materials | Polymer Structure Flashcards
1
Q
What is polymerisation?
A
When monomers react and form a polymer chain
2
Q
What does the degree of polymerisation (DP/n) equal?
A
n = number of mer units/polymer molecule
3
Q
What is a monomer?
A
small unreacted single unit for polymer
4
Q
What is a mer?
A
single repeat unit of a polymer
5
Q
What is a polymer?
A
Entire polymer chain
6
Q
What is an example of a mer?
A
Poly ehtylene (PE) Polypropylene (PP)
7
Q
What distinguishes polymers from other organic compounds?
A
The molecular weight and dimension
8
Q
What does an increased chain length result in?
A
- stronger material
- increased stiffness
- higher melting point
