3. Polyethylenaphthalate and copolymers (PEN)
3.1 Presentation
It was industrial access to methyl naphthalenedicarboxylate (the Amoco process taken over by BP) that enabled the commercial development of PEN.
PEN is a semi-crystalline polymer
with a melting temperature (T
f
) and glass transition temperature (T
g
) much higher than those of PET. Its crystallization kinetics are slower (table
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Polyethylenaphthalate and copolymers (PEN)
Aliphatic polyesters
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