Green Polymers – A Case Study (HSC SSCE Chemistry): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
Crude oil problem for plastics
Crude oil problem for plastics
Non-renewable resource being depleted
Type of polymer cellulose is
Type of polymer cellulose is
Naturally occurring condensation polymer (polysaccharide)
% of vegetable matter as cellulose
% of vegetable matter as cellulose
33%
Pathway: Cellulose to ethylene steps
Pathway: Cellulose to ethylene steps
Cellulose → Glucose → Ethanol → Ethylene
Two methods to break down cellulose
Two methods to break down cellulose
Cellulase enzymes or strong acid digestion
Energy paradox of cellulose conversion
Energy paradox of cellulose conversion
May use more oil than direct cracking
Definition of biopolymers
Definition of biopolymers
Polymers made totally/largely by living organisms
First plastic made (1869)
First plastic made (1869)
Cellulose nitrate (celluloid)
Issue with synthetic vs natural polymers
Issue with synthetic vs natural polymers
Not biodegradable
Graft copolymer structure
Graft copolymer structure
Alternating biopolymer & synthetic sections