Soc., A, 200, 337, 358 (1952)]. Calculate the copolymerization rate from (a) chem- ical control model [Eq. (7.52)] and (b) combined model [Eqs. (7.46) and (7.56)] to compare with the experimental value. Use the homopolymerization rate constants at 30°C for styrene as k, = 46 L mol-l s-l and k MMA as k, = 286 mol L- s- and k, = 2.44x10 mol L-s-. The reactivity ratios at 30°C are ri = 0.485 and r2 = 0.422. Make the comparison using o = 10 and o = 13. Monomer density = 0.90 g/cm. 8.0x106 L mol-ls- and for %3D %3D %3D %3D
Soc., A, 200, 337, 358 (1952)]. Calculate the copolymerization rate from (a) chem- ical control model [Eq. (7.52)] and (b) combined model [Eqs. (7.46) and (7.56)] to compare with the experimental value. Use the homopolymerization rate constants at 30°C for styrene as k, = 46 L mol-l s-l and k MMA as k, = 286 mol L- s- and k, = 2.44x10 mol L-s-. The reactivity ratios at 30°C are ri = 0.485 and r2 = 0.422. Make the comparison using o = 10 and o = 13. Monomer density = 0.90 g/cm. 8.0x106 L mol-ls- and for %3D %3D %3D %3D
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
Related questions
Question
![7.10 The measurement of bulk copolymerization of styrene (M1) and methyl methacrylate
(M2) at 30°C in a feed of 0.031 mole fraction styrene with initiation by photosen-
sitized decomposition of benzoyl peroxide gave a value of 7.11x10-5 mol L- s-,
while homopolymerization of styrene under the same conditions yielded a polymer-
ization rate of 3.02x10-5 mol L-s- [H. W. Melville and L. Valentine, Proc. Roy.
Soc., A, 200, 337, 358 (1952)]. Calculate the copolymerization rate from (a) chem-
ical control model [Eq. (7.52)] and (b) combined model [Eqs. (7.46) and (7.56)] to
compare with the experimental value. Use the homopolymerization rate constants
at 30°C for styrene as k, = 46 L mol- s- and k, = 8.0x106 L mol- s- and for
MMA as kp = 286 mol L- s- and k; = 2.44x10' mol L-s-. The reactivity ratios
at 30°C arerį
%3D
0.485 and r2 = 0.422. Make the comparison using o = 10 and o
13. Monomer density = 0.90 g/cm.
Ans.
Rate of copolymerizationx10°, mol Ls-
Chemical control
Combined model
Experimental
Eq. (7.52)
Eqs. (7.46) and (7.56)
ゆ= 10
ゆ= 10
$ = 13
$= 13
7.11
6.30
5.71
7.85
7.28](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc1ede4c4-73c1-40d6-8a63-632d2318b694%2Fced689d4-175c-4af1-baec-483f3874c189%2Fa2zouv_processed.jpeg&w=3840&q=75)
Transcribed Image Text:7.10 The measurement of bulk copolymerization of styrene (M1) and methyl methacrylate
(M2) at 30°C in a feed of 0.031 mole fraction styrene with initiation by photosen-
sitized decomposition of benzoyl peroxide gave a value of 7.11x10-5 mol L- s-,
while homopolymerization of styrene under the same conditions yielded a polymer-
ization rate of 3.02x10-5 mol L-s- [H. W. Melville and L. Valentine, Proc. Roy.
Soc., A, 200, 337, 358 (1952)]. Calculate the copolymerization rate from (a) chem-
ical control model [Eq. (7.52)] and (b) combined model [Eqs. (7.46) and (7.56)] to
compare with the experimental value. Use the homopolymerization rate constants
at 30°C for styrene as k, = 46 L mol- s- and k, = 8.0x106 L mol- s- and for
MMA as kp = 286 mol L- s- and k; = 2.44x10' mol L-s-. The reactivity ratios
at 30°C arerį
%3D
0.485 and r2 = 0.422. Make the comparison using o = 10 and o
13. Monomer density = 0.90 g/cm.
Ans.
Rate of copolymerizationx10°, mol Ls-
Chemical control
Combined model
Experimental
Eq. (7.52)
Eqs. (7.46) and (7.56)
ゆ= 10
ゆ= 10
$ = 13
$= 13
7.11
6.30
5.71
7.85
7.28
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