Draw the mechanism for the cationic polymerization of styrene using H2SO4 as initiator. Include initiation, propagation, ion pair rearrangement, and chain transfer to monomer
Draw the mechanism for the cationic polymerization of styrene using H2SO4 as initiator. Include initiation, propagation,...
Draw a mech. For polymerization using butylithium as initiator. Show the initiation one chain propagation step and use H+ to terminate growth.
1. What is the mechanism of polymerization of styrene with AIBN? Initiation: Propagation: Termination (Show self-termination only):
For polymerization of styrene in tetrahydrofuran at 25°C using sodium naphthalide initiator, the rate coefficient for propagation is 550 dm^3 mol^-1 s^-1. If the initial mass concentration of styrene is 156 g dm^-3 and that of sodium naphthalide is 3.02x10^-2 g dm^-3, calculate the initial rate of polymerization and, for complete converison of the styrene, the number-average molar mass of polystyrene formed. Comment upon the expected value of molar mass dispersity (Mw/Mn) and the stereoregularity of the polystyrene produced. Assume:...
reaction mech: initiation , propagation, and termination of the synthesis of polystyrene Polymersti 2. Write the reaction mechanism (showing arrows) of the synthesis of polystyrene. 4pts • Include and show arrows in 2 initiation steps with benzoyl peroxide forming the phenyl radical. (this is shown in Figure 9 of the lab- just add all arrows) A propagation step of the styrene (the monomer) and phenyl radical. A second propagation step showing polymer growth by reacting styrene and the radical product...
Draw curved arrow mechanisms for the rin cationic initiator and (b) an anionic initiator You should Then, comment on which method you expect to produce a s for the ring-opening polymerization of E-caprolactone using (a) a monic initiator Vou should show an initiation and a propagation step. od you expect to produce a narrower molar mass distribution and why. -NH E-caprolactone
In normal free radical processes with added initiator, the polymerization rate and kinetic chain length are proportional to the first power of monomer concentration. What would be the effect of monomer concentration on rate and chain length in the thermal polymerization of styrene (which involves no initiator)? Derive a kinetics expression to show this.Assume that initiation is based on the following equation: M + M -> 2 M. (radical in the product).
Write a detailed mechanism for the polymerization of styrene in the presence of benzoyl peroxide. The mechanism should include three distinct steps: initiation, propagation, and termination. For propagation, show the first three polystyrene units.
show the polymerization of styrene using SnCl4 as the initiator
Draw the mechanism of radical polymerization of N-isopropylacrylamide including initiation, propagation, and termination steps.
The mechanism for number 2 please Polymers11 2. Write the reaction mechanism (showing arrows) of the synthesis of polystyrene. 4pts Include and show arrows in 2 initiation steps with benzoyl peroxide forming the phenyl radical. (this is shown in Figure 9 of the lab- just add all arrows) • A propagation step of the styrene (the monomer) and phenyl radical. • A second propagation step showing polymer growth by reacting styrene and the radical product of first propagation step. A...