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The Solid State Postcondensation of PET, 2

✍ Scribed by Barbara Gantillon; Roger Spitz; Timothy F. McKenna


Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
151 KB
Volume
289
Category
Article
ISSN
1438-7492

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✦ Synopsis


Abstract

Summary: A process for the solid state polycondensation of PET is proposed. It is shown that by correctly choosing the prepolymerisation conditions it is possible to crystallise the product and to directly polymerise it in a dispersed phase. This process is significantly faster than the β€œstandard” PET processes, and allows one to obtain high molecular weights directly from a prepolymer without the need to use an intermediate solution polymerisation step.

Reactor set‐up for precursor preparation and dispersed phase prepolymerisation.

magnified imageReactor set‐up for precursor preparation and dispersed phase prepolymerisation.


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The Solid State Postcondensation of PET,
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## Abstract **Summary:** A review of the processes underlying the solid state postcondensation of poly(ethylene terephthalate) (PET) is presented. Fundamental aspects of the reactions are treated, and it is shown that the rate of polycondensation in the solid state depends on the relative rates of

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