Which type of polymeris the Buna-S-rubber?
Addition polymer
Condensation polymer
Copolymer
None of the above
Teflon is an example of polymer which is a/ an
polyamide
addition polymer
polyester
formaldehyde resin
B.
addition polymer
Teflon is prepared by the combination of a large number of tetrafluoroethylene molecules, without the elimination of any small molecule. Therefore, it is an example of addition homopolymer.
nCF2=CF2 → [-CF2-CF2-]n
Which of the following are addition polymers?
Nylon
Melamine formaldehyde resin
Orlon
All of these
Which pair of polymers have similar properties?
Nylon, PVC
PAN, PTFE
PCTFE, PTFE
Bakelite, alkyle resin