Styrene is polymerized by free radical mechanism in solution. The initial monomer and initiator concentrations are 1 M and 0.001 M, respectively. At the polymerization temperature of 60ºC, the initiator efficiency is 0.30. The rate constants at the polymerization temperature are as follows: kd= 1.2 x 10-5 s-1 kp= 176 M-1s-1 kt= 7.2 107m-1s-1 Given this information, determine the following; a. Rate of initiation at 1 min and at 16.6 hrs b. Steady-state free radical concentration at 1 min c. Rate of polymerization at 1 min
Styrene is polymerized by free radical mechanism in solution. The initial monomer and initiator concentrations are 1 M and 0.001 M, respectively. At the polymerization temperature of 60ºC, the initiator efficiency is 0.30. The rate constants at the polymerization temperature are as follows: kd= 1.2 x 10-5 s-1 kp= 176 M-1s-1 kt= 7.2 107m-1s-1 Given this information, determine the following; a. Rate of initiation at 1 min and at 16.6 hrs b. Steady-state free radical concentration at 1 min c. Rate of polymerization at 1 min
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Styrene is polymerized by free radical
kd= 1.2 x 10-5 s-1
kp= 176 M-1s-1
kt= 7.2 107m-1s-1
Given this information, determine the following;
a. Rate of initiation at 1 min and at 16.6 hrs
b. Steady-state free radical concentration at 1 min
c. Rate of polymerization at 1 min
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