Question 4. Methylvinyl ketone (MVK) can undergo a polymerization reaction in the presence of AIBN initiator to produce a poly(methylvinyl ketone) polymer according to the scheme below. NEC H3C CH3 N=N CH3 CEN CH3 azobisisobutyronitrile (AIBN) CH3 methylvinyl ketone (MVK) heat H3C CH3 NEC X n poly(methylvinyl ketone) a) Provide the mechanism for heat-induced decomposition of the AIBN initiator to produce a reactive radical species. H3C CH3 N. NCEN CH3 CH3 heat b) Provide a mechanism for the initiation step in the MVK polymerization reaction: c) Show the mechanism for the propagation step to form an MVK oligomer with n = 3:
Question 4. Methylvinyl ketone (MVK) can undergo a polymerization reaction in the presence of AIBN initiator to produce a poly(methylvinyl ketone) polymer according to the scheme below. NEC H3C CH3 N=N CH3 CEN CH3 azobisisobutyronitrile (AIBN) CH3 methylvinyl ketone (MVK) heat H3C CH3 NEC X n poly(methylvinyl ketone) a) Provide the mechanism for heat-induced decomposition of the AIBN initiator to produce a reactive radical species. H3C CH3 N. NCEN CH3 CH3 heat b) Provide a mechanism for the initiation step in the MVK polymerization reaction: c) Show the mechanism for the propagation step to form an MVK oligomer with n = 3:
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter23: Polymeric Materials And Soft Condensed Matter
Section: Chapter Questions
Problem 24AP
Related questions
Question
Transcribed Image Text:Question 4.
Methylvinyl ketone (MVK) can undergo a polymerization reaction in the presence
of AIBN initiator to produce a poly(methylvinyl ketone) polymer according to the
scheme below.
NEC
H3C
CH3
N=N
CH3
CEN
CH3
azobisisobutyronitrile (AIBN)
CH3
methylvinyl ketone (MVK)
heat
H3C
CH3
NEC
X
n
poly(methylvinyl ketone)
a) Provide the mechanism for heat-induced decomposition of the AIBN initiator
to produce a reactive radical species.
H3C
CH3
N.
NCEN
CH3
CH3
heat
b) Provide a mechanism for the initiation step in the MVK polymerization
reaction:
c) Show the mechanism for the propagation step to form an MVK oligomer with
n = 3:
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