When Did the science of copolymerisation started?
1922
1911
1944
1986
Staudinger in 1939 fractionated Vinyl Acetat -vinyl Chloride of equimolar quantities what did he found ?
Found the vinyl acetat concentration in polymer is double
Found equal concentration of both monomers in polymer
Discovered that both monomers have different reactivity ratio
both monomers have equal reactivity ratio
what is monomer reactivity ration is r1=k11/k12?
Shows rate of the monomer 1 add to another monomer 1
shows rate monomer 1 adds to monomer 2
monomer M1 prefers adding to M1 or perfers adding to M2
Does not show any preference in term of ratios
How many possible ways both monomers can add in a copolymerisation?
four ways
two ways
one way
can not add
A Radical Monomer M'1 in a copolymerisation can add to
M1
M2
M1'
M'2
to all of them
Please describe the process of copolymerisation
Polymerisation of on monomer
Polymerisation of 2 monomers
Polymerisation of three monomers
Two or three