Effect of striation thickness distribution on the course of an unpremixed polymerization

Steven D. Fields; Julio M. Ottino

doi:10.1016/0009-2509(87)80008-8

Effect of striation thickness distribution on the course of an unpremixed polymerization

Steven D. Fields^*, Julio M. Ottino

^*Corresponding author for this work

Administration

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

A lamellar model is used to evaluate the effects of striation thickness distribution on the behaviour of an unpremixed three component random block copolymerization. A lumped competitive-parallel kinetic scheme is used to describe the polymerization, and the diffusion-reaction process is solved over a periodic set of striations. The results indicate that using an average striation thickness to describe a reacting system may greatly overestimate the conversion, especially if the striation thickness distribution is wide. Large regions of unreacted monomers may remain isolated at long times, even for a system which is macroscopically stoichiometric.

Original language	English (US)
Pages (from-to)	459-465
Number of pages	7
Journal	Chemical Engineering Science
Volume	42
Issue number	3
DOIs	https://doi.org/10.1016/0009-2509(87)80008-8
State	Published - 1987

Funding

financial support of CUMIRP, the Center for University of Massachusetts-Industry Research on Polymers, and the donors of the Petroleum Research Fund, administered by the ACS.

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

Access to Document

10.1016/0009-2509(87)80008-8

Cite this

@article{399b4c3e92cb4cca8fabe03f91f68ade,

title = "Effect of striation thickness distribution on the course of an unpremixed polymerization",

abstract = "A lamellar model is used to evaluate the effects of striation thickness distribution on the behaviour of an unpremixed three component random block copolymerization. A lumped competitive-parallel kinetic scheme is used to describe the polymerization, and the diffusion-reaction process is solved over a periodic set of striations. The results indicate that using an average striation thickness to describe a reacting system may greatly overestimate the conversion, especially if the striation thickness distribution is wide. Large regions of unreacted monomers may remain isolated at long times, even for a system which is macroscopically stoichiometric.",

author = "Fields, {Steven D.} and Ottino, {Julio M.}",

note = "Funding Information: financial support of CUMIRP, the Center for University of Massachusetts-Industry Research on Polymers, and the donors of the Petroleum Research Fund, administered by the ACS.",

year = "1987",

doi = "10.1016/0009-2509(87)80008-8",

language = "English (US)",

volume = "42",

pages = "459--465",

journal = "Chemical Engineering Science",

issn = "0009-2509",

publisher = "Elsevier B.V.",

number = "3",

}

TY - JOUR

T1 - Effect of striation thickness distribution on the course of an unpremixed polymerization

AU - Fields, Steven D.

AU - Ottino, Julio M.

N1 - Funding Information: financial support of CUMIRP, the Center for University of Massachusetts-Industry Research on Polymers, and the donors of the Petroleum Research Fund, administered by the ACS.

PY - 1987

Y1 - 1987

N2 - A lamellar model is used to evaluate the effects of striation thickness distribution on the behaviour of an unpremixed three component random block copolymerization. A lumped competitive-parallel kinetic scheme is used to describe the polymerization, and the diffusion-reaction process is solved over a periodic set of striations. The results indicate that using an average striation thickness to describe a reacting system may greatly overestimate the conversion, especially if the striation thickness distribution is wide. Large regions of unreacted monomers may remain isolated at long times, even for a system which is macroscopically stoichiometric.

AB - A lamellar model is used to evaluate the effects of striation thickness distribution on the behaviour of an unpremixed three component random block copolymerization. A lumped competitive-parallel kinetic scheme is used to describe the polymerization, and the diffusion-reaction process is solved over a periodic set of striations. The results indicate that using an average striation thickness to describe a reacting system may greatly overestimate the conversion, especially if the striation thickness distribution is wide. Large regions of unreacted monomers may remain isolated at long times, even for a system which is macroscopically stoichiometric.

UR - http://www.scopus.com/inward/record.url?scp=0023263835&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0023263835&partnerID=8YFLogxK

U2 - 10.1016/0009-2509(87)80008-8

DO - 10.1016/0009-2509(87)80008-8

M3 - Article

AN - SCOPUS:0023263835

SN - 0009-2509

VL - 42

SP - 459

EP - 465

JO - Chemical Engineering Science

JF - Chemical Engineering Science

IS - 3

ER -

Effect of striation thickness distribution on the course of an unpremixed polymerization

Abstract

Funding

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this