Concept explainers
(a)
Interpretation:
The monomer that might have reacted to produce the given
Concept introduction:
The ring-opening metathesis polymerization comes under the category of olefin metathesis chain-growth polymerization. In this polymerization technique, the reaction between a cycloalkene and a metal catalyst takes place that forms the polymer containing both single and double bonds.
(b)
Interpretation:
The monomer that might have reacted to produce the given polymer by using ring-opening metathesis polymerization is to be stated.
Concept introduction:
The ring-opening metathesis polymerization comes under the category of olefin metathesis chain-growth polymerization. In this polymerization technique, the reaction between a cycloalkene and a metal catalyst takes place that forms the polymer containing both single and double bonds.
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Organic Chemistry (9th Edition)
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- Draw the curved arrow mechanism for the initiation step in cationic polymerization when methoxyethene reacts with BCI3 H₂O. Include unshared electrons and any nonzero formal charges. You do not need to show additional resonance forms. TA i Draw the curved arrow mechanism for the initiation step of this polymerization reaction. □ AN :CI: ‒‒‒‒‒‒‒ i 12D : CI: :CI—B :CI: + I H C N O S F P Cl Brarrow_forwardCan you explain condensation polymerization and give an example with structure of one with 2 carboxylic acid groups and 2 OH groups.arrow_forwardDIRECTIONS: Complete the table by filling in the boxes the necessary data. MONOMER MONOMER NAME POLYMER NAME TYPICAL USE STRUCTURE CH2=CH-CH3 Polypropylene Vinyl Chloride Piping CH2=CH-CN Polyacrylonitrilearrow_forward
- Poly(ethylene terephthalate) (PET) can be prepared by this reaction. Propose a mecha- nism for the step-growth reaction in this polymerization. 275°C n CH;OC- -COCH, + n HOCH,CH,OH -COCH,CH,O- + 2n CH3OH Dimethyl terephthalate Ethylene glycol Poly(ethylene terephthalate) Methanolarrow_forwardThe following diagram shows a polymer with four repeating units. Identify the correct monomer that was needed to form this polymer. H3 H₂ нснснсн | | | | с-с-с-с-с-с-с-с+ | | | | | | нннннн Н T a) С н-с-с Oc) H₂C Н- T H Н Н Н Н Н C- Г -C H CH3 Н O d) Н Н Н Ж H Н Н Н Н н н CH3 На C-H H HU I Н Н Н С -с-с-H A н нarrow_forwardQuestion 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:arrow_forward
- Provide the mechanism for the step-growth polymerization of citric acid and ethylene glycol to form poly (ethylene glycol)-citrate. Show all steps.arrow_forwardHigh density polyethylene (HDPE) and low density (LDPE) both are made from the same monomer (-CH2-)a one is transparent in appearance and one is whitish in colour. Identify which polymer has the transparent characteristic and which has the whitish colour and explain why such behavior is observed.arrow_forwardDraw the structure of the polymer formed from ring-opening metathesis polymerization (ROMP) of each monomer.arrow_forward
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