Measurement of in situ monomer sorption in polyu(propylene)

J.T.M. Pater; G. Weickert; Anna Fait; Gabriele Mei

doi:10.1002/marc.200400198

Measurement of in situ monomer sorption in polyu(propylene)

J.T.M. Pater, G. Weickert, Anna Fait, Gabriele Mei

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Abstract

An experimental method has been developed to compare the amount of monomer absorbed in freshly produced poly(propylene) with the amount of monomer absorbed in the same material after degassing. It has been found that propylene sorption in freshly produced poly(propylene) is significantly higher than the sorption in the same but degassed polymer. The difference depends on the degree of drying and is time-dependent. This fact can be an explanation for reduced activity often observed in the transition from liquid- to gas-phase polymerization.

Original language	Undefined
Pages (from-to)	1638-1642
Number of pages	5
Journal	Macromolecular rapid communications
Volume	25
Issue number	18
DOIs	https://doi.org/10.1002/marc.200400198
Publication status	Published - 2005

Keywords

monomers
Equilibrium measurements
IR-58298
METIS-223557
poly(propylene) (PP)

Access to Document

10.1002/marc.200400198

Cite this

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abstract = "An experimental method has been developed to compare the amount of monomer absorbed in freshly produced poly(propylene) with the amount of monomer absorbed in the same material after degassing. It has been found that propylene sorption in freshly produced poly(propylene) is significantly higher than the sorption in the same but degassed polymer. The difference depends on the degree of drying and is time-dependent. This fact can be an explanation for reduced activity often observed in the transition from liquid- to gas-phase polymerization.",

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T1 - Measurement of in situ monomer sorption in polyu(propylene)

AU - Pater, J.T.M.

AU - Weickert, G.

AU - Fait, Anna

AU - Mei, Gabriele

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Y1 - 2005

N2 - An experimental method has been developed to compare the amount of monomer absorbed in freshly produced poly(propylene) with the amount of monomer absorbed in the same material after degassing. It has been found that propylene sorption in freshly produced poly(propylene) is significantly higher than the sorption in the same but degassed polymer. The difference depends on the degree of drying and is time-dependent. This fact can be an explanation for reduced activity often observed in the transition from liquid- to gas-phase polymerization.

AB - An experimental method has been developed to compare the amount of monomer absorbed in freshly produced poly(propylene) with the amount of monomer absorbed in the same material after degassing. It has been found that propylene sorption in freshly produced poly(propylene) is significantly higher than the sorption in the same but degassed polymer. The difference depends on the degree of drying and is time-dependent. This fact can be an explanation for reduced activity often observed in the transition from liquid- to gas-phase polymerization.

KW - monomers

KW - Equilibrium measurements

KW - IR-58298

KW - METIS-223557

KW - poly(propylene) (PP)

U2 - 10.1002/marc.200400198

DO - 10.1002/marc.200400198

M3 - Article

SN - 1022-1336

VL - 25

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EP - 1642

JO - Macromolecular rapid communications

JF - Macromolecular rapid communications

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