Free radical suspension polymerization kinetics of styrene up to high conversion

Nurelegne Tefera; N. Tefera shibeshe; G. Weickert; Robert Bloodworth; Johannes Schweer

doi:10.1002/macp.1994.021950906

Free radical suspension polymerization kinetics of styrene up to high conversion

Nurelegne Tefera, N. Tefera shibeshe, G. Weickert, Robert Bloodworth, Johannes Schweer

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Abstract

Styrene was polymerized using different amounts of azoisobutyronitrile as initiator at temperatures of 70°C, 75°C and 80°C in suspension. The course of reaction up to almost complete conversion was modeled within a classical kinetic framework. Optimal simultaneous descriptions of both conversion and average degree of polymerization data were possible using two sets of values for the variation of the overall termination rate coefficient kt with conversion. One explanation for this is that kt is chain length dependent. Evidence for this necessity was derived by considering all kinetic parameters, except the termination rate coefficient, as reliable absolute values.

Original language	Undefined
Pages (from-to)	3067-3085
Number of pages	19
Journal	Macromolecular chemistry
Volume	195
Issue number	9
DOIs	https://doi.org/10.1002/macp.1994.021950906
Publication status	Published - 1994

Keywords

METIS-105823
IR-71095

Access to Document

10.1002/macp.1994.021950906

Tefera94free
open

Cite this

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title = "Free radical suspension polymerization kinetics of styrene up to high conversion",

abstract = "Styrene was polymerized using different amounts of azoisobutyronitrile as initiator at temperatures of 70°C, 75°C and 80°C in suspension. The course of reaction up to almost complete conversion was modeled within a classical kinetic framework. Optimal simultaneous descriptions of both conversion and average degree of polymerization data were possible using two sets of values for the variation of the overall termination rate coefficient kt with conversion. One explanation for this is that kt is chain length dependent. Evidence for this necessity was derived by considering all kinetic parameters, except the termination rate coefficient, as reliable absolute values.",

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year = "1994",

doi = "10.1002/macp.1994.021950906",

language = "Undefined",

volume = "195",

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T1 - Free radical suspension polymerization kinetics of styrene up to high conversion

AU - Tefera, Nurelegne

AU - Tefera shibeshe, N.

AU - Weickert, G.

AU - Bloodworth, Robert

AU - Schweer, Johannes

PY - 1994

Y1 - 1994

N2 - Styrene was polymerized using different amounts of azoisobutyronitrile as initiator at temperatures of 70°C, 75°C and 80°C in suspension. The course of reaction up to almost complete conversion was modeled within a classical kinetic framework. Optimal simultaneous descriptions of both conversion and average degree of polymerization data were possible using two sets of values for the variation of the overall termination rate coefficient kt with conversion. One explanation for this is that kt is chain length dependent. Evidence for this necessity was derived by considering all kinetic parameters, except the termination rate coefficient, as reliable absolute values.

AB - Styrene was polymerized using different amounts of azoisobutyronitrile as initiator at temperatures of 70°C, 75°C and 80°C in suspension. The course of reaction up to almost complete conversion was modeled within a classical kinetic framework. Optimal simultaneous descriptions of both conversion and average degree of polymerization data were possible using two sets of values for the variation of the overall termination rate coefficient kt with conversion. One explanation for this is that kt is chain length dependent. Evidence for this necessity was derived by considering all kinetic parameters, except the termination rate coefficient, as reliable absolute values.

KW - METIS-105823

KW - IR-71095

U2 - 10.1002/macp.1994.021950906

DO - 10.1002/macp.1994.021950906

M3 - Article

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SP - 3067

EP - 3085

JO - Macromolecular chemistry

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ER -