Which one of the following compounds is used to obtain polymer teflon?
Difluoro ethane
Monofluoro ethane
Tetrafluoro ethene
None of the above
Bakelite is the condensation polymer of
C6H5OH and caprolactum
HCHO and phthalic acid
C6H5OH and HCHO
HCHO and ethylene glycol
Monomer of polymer
2-methylpropene
styrene
propene
ethene
A.
2-methylpropene
2-methylpropene or isobutylene undergoes cationic polymerisation easily in presence of BF3 or H2SO4 since it has two electron donating methyl groups that will stabilize the intermediate carbocation,
Bisphenol and epichlorohydrin condensed in presence of NaOH forming
Resins
Rubber
Foam
Polyester
Natural rubber is a polymer of monomer isoprene. During polymerisaton
1, 4 addition takes place
1, 2 addition takes place
1,3 addition takes place
both double bonds are converted into single bond