			Learning objectives
			Describe and classify the different types of polymers
			Thermoplastics and Thermosets
			The two basic types of polymers: thermoplastic and thermoset are structured very differently and behaviour differents. Both are used in composites but each type has its own advantages and disadvantages Thermoplastics and Thermosets handout The earlier video on free radicial polymerisation was on how thermoplastics such as PE and PVC are synthesised. The following video show and example of how a thermoset forms a solid 3-D structure.
			Exercise
			1. Find out examples of a thermoplastic that you have come across (hint use the recycling label to identify it) and find out what is has for chemical structure 2. Find a thermoset example. The chemical structure is more complicated and more difficult to identify but give a qualified guess what it might be and explain how you deduced this. 3. Find out if a biobased example of these exists and what company makes it.
			Student-generated questions
			Create a question in PeerWise that covers some of today's content. Answer another students question as well! Logon instructions