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What does “poly” and “mer” mean?
Many and part
What are the two types of polymerization?
Addition and condensation
What are Thermoplastics?
Soften when heated and resolidify cooled with little to no cross linking.
What are Thermosets?
Set into a solid form permanently when heated and can’t be softened by heat with lots of strong cross linking.
Alkanes have ____ bonds in their chains
single
Alkenes have ____ bonds in their chains
double
What is Fractional Distillation?
A refining process that separates petroleum products by boiling point / molecular weight
What is Cross-linking?
When strands of polymers are interconnected by covalent bonds or intermolecular bonds
What is the structure and properties of HDPE?
Linear chains and crystalline structure, harder plastic and higher melting point
What is the structure and properties of LDPE?
Branched chains and amorphous structure with a lower melting point