The cationic polymerization of a-methylstyrene can be initiated by the BCI3/H2O initiating system. Assume the termination reaction occurs only by chain transfer to monomer by b-proton transfer. Draw the complete chemical structure for a poly(a-methylstyrene) containing three a-methylstyrene repeat units that results from this polymerization.

The cationic polymerization of a-methylstyrene can be initiated by the BCI3/H2O initiating system. Assume the termination reaction occurs only by chain transfer to monomer by b-proton transfer. Draw the complete chemical structure for a poly(a-methylstyrene) containing three a-methylstyrene repeat units that results from this polymerization.

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Concept explainers

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.

Question

The cationic polymerization of
a-methylstyrene can be initiated by
the BCI3/H2O initiating system.
Assume the termination reaction
occurs only by chain transfer to
monomer by b-proton transfer. Draw
the complete chemical structure for a
poly(a-methylstyrene) containing
three a-methylstyrene repeat units
that results from this polymerization.
05
10:06 AM

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