Which of the following would you expect to be elastomers and which thermosetting polymers at room temperature? Justify your choices. (Note that some of these are neither
elastomers or thermosets and some are both.)
a) Linear and partially amorphous poly(vinyl chloride)
b) Lightly crosslinked polyisoproprene having a glass-transition temperature
of -60 o C.
c) Heavily corsslinked polyisoproprene having a glass transition temperature
of 50 o C
d) Phenol-formaldehyde (it is described in the book – look for it)
e) Linear and highly crystalline polyethylene