Section 3: Chemistry Flashcards
What is the general formula for alkanes?
C2H2n+2
What is the general formula for alkenes?
C2H2n
What is the difference between alkanes and alkenes?
Alkanes are saturated
Alkenes are unsaturated (double C=C bond)
What are the two forms of polymerisation?
Addition polymerisation
Condensation polymerisation
What is addition polymerisation?
Double C=C bond breaks open to form links with other double C=C bonds
What is condensation polymerisation?
Monomers join together with elimination of water molecules
H-[x]-O-H + H-[y]-O-H –> H-[x]-[y]-O-H + H-O-H
Cellulose condensation polymer of glucose
What is the process of making a biopolymer?
Suitable micro-organism cultured in suitable medium
Rapid reproduction
Nutrient supply changed
Micro-organisms make polymer rather than reproduce
Polymer stored in micro-organisms
Micro-organisms collected and polymer separated