Solid-phase postcondensation (PCS or SSP)
PET or polyethylene terephthalate
Article REF: J6488 V1
Solid-phase postcondensation (PCS or SSP)
PET or polyethylene terephthalate

Author : Jean-Pierre QUENTIN

Publication date: June 10, 2004 | Lire en français

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4. Solid-phase postcondensation (PCS or SSP)

4.1 Kinetic aspect

Melt-phase polycondensation does not allow access to very high molecular weights, in particular, as we saw previously 1 , to those required by certain applications (industrial yarns and bottles). Indeed, at these temperatures, close to 270 ˚C, competition between polycondensation reactions and undesirable secondary reactions...

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