𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The Solid State Postcondensation of PET, 4

✍ Scribed by Barbara Gantillon; Roger Spitz; Jean-Luc Lepage; Timothy F. McKenna

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

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Summary: A new method of polymerising PET in the solid state is proposed in either a gas phase reactor, or in hydrocarbon dispersion. It is shown that the reaction can be carried out efficiently at temperatures on the order of 200–240 °C directly from a prepolymer without the need for a melt phase step. It is shown that the crystal structure of the prepolymer plays a determining role in the kinetics of the SSP reaction.

Schema of the reactor used for gas phase SSP.

magnified imageSchema of the reactor used for gas phase SSP.

πŸ“œ SIMILAR VOLUMES

The Solid State Postcondensation of PET,
The Solid State Postcondensation of PET, 1
✍ Barbara Gantillon; Roger Spitz; Timothy F. McKenna πŸ“‚ Article πŸ“… 2004 πŸ› John Wiley and Sons 🌐 English βš– 234 KB

## 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

The Solid State Postcondensation of PET,
The Solid State Postcondensation of PET, 2
✍ Barbara Gantillon; Roger Spitz; Timothy F. McKenna πŸ“‚ Article πŸ“… 2004 πŸ› John Wiley and Sons 🌐 English βš– 151 KB

## 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 Solid State Postcondensation of PET,
The Solid State Postcondensation of PET, 3
✍ Barbara Gantillon; Roger Spitz; Timothy F. McKenna πŸ“‚ Article πŸ“… 2004 πŸ› John Wiley and Sons 🌐 English βš– 194 KB

## Abstract **Summary:** It was demonstrated that it is possible to produce prepolymers with a number‐average degree of polymerisation on the order of 5–40 directly in a liquid‐liquid dispersion in less than three hours. It was also shown that prepolymers made via this route and rapidly crystallise