10. [The rate of thermal decomposition for the two azo-based initiators shown below are vastly different when employed for polymerization of styrene at 60 °C. i) Illustrate the mechanism and products of thermal decomposition for each initiator and ii) explain the difference in observed rate constants. (a) (b) yent a apunto = 170 x 106 M.15-1 at 60 °C kd = 9.7 x 106 at 60 °C M.15-1 Kd

10. [The rate of thermal decomposition for the two azo-based initiators shown below are vastly different when employed for polymerization of styrene at 60 °C. i) Illustrate the mechanism and products of thermal decomposition for each initiator and ii) explain the difference in observed rate constants. (a) (b) yent a apunto = 170 x 106 M.15-1 at 60 °C kd = 9.7 x 106 at 60 °C M.15-1 Kd

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter8: Haloalkanes, Halogenation, And Radical Reactions

Section: Chapter Questions

Problem 8.34P

See similar textbooks

Similar questions

9a. Give a complete reaction scheme for the polymerization of styrene with tert-butylhydroperoxide as an initiator and termination by disproportionation.
Please show the product and mechanism for the cationic polymerization of 2-butene using BF3/H2O to catalyze polymerization. Do you expect this to be an effective polymerization strategy for this monomer? Why or why not?
Order the following monomers with respect to their expected reactivity toward anionic polymerization, and explain your answer:
9a. Give a complete reaction scheme for the polymerization of styrene with tert-butylhydroperoxide as an initiator and termination by disproportionate.
1.- How does the molecular weight change vs % conversion in a step polymerization? Explain this behavior and why does it occur? 2.- Name at least 3 requirements for obtaining a high molecular weight polymer by step polymerization. 3.- How can you minimize cyclization reactions in a step polymerization? Explain with equations and narrative Why do you want to minimize cyclization? Is it possible to eliminate cyclic products completely?
A. Why does acrylic acid polymerization under radical conditions work so well? Explain. B. Predict the impact of using the crosslinker shown below, instead of MBA, on the hardness/rigidity of the polymer. Explain.
For indicated reaction provide: Ionic polymerization of propene. a. general equationb. Mechanismc. Discussion of regioselectivityd. Discussion of the proportion between the products formed (if more than one is formed).e. Discussion of stereoselectivity.
When certain cycloalkenes are used in metathesis reactions, ringopening metathesis polymerization (ROMP) occurs to form a highmolecular- weight polymer, as shown with cyclopentene as the starting material. The reaction is driven to completion by relief of strain in the cycloalkene.What products are formed by ring-opening metathesis polymerization of each alkene?
explain in detail the mechanism for the photoinduced step-growth polymerization of n-ethylcarbazole.
Describe the polymerization of 2,2-dimethyloxirane by an anionic mechanism.
One possible way of determining the identity of an alkene, is to let itundergo an oxidative cleavage reaction in the presence of hot basicpotassium permanganate. You are given two containers said to containdifferent alkenes. Container A is marked as cis / trans‐2‐butene andcontainer B as 2‐methyl‐1‐butene. Explain by referring to the formation ofproducts, how you would verify the identity of the alkenes.
The rate law for addition of Br2 to an alkene is first orderin Br2 and first order in the alkene. Does this informationsuggest that the mechanism of addition of Br2 to analkene proceeds in the same manner as for addition of HBr?Explain.