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Analysis of oligomerization in the reaction of dimethyl terephthalate with ethylene glycol

✍ Scribed by M.J. Barandiaran; J.M. Asúa


Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
664 KB
Volume
31
Category
Article
ISSN
0032-3861

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Pellets of poly(ethylene terephthalate) (PET; 0.48-1.92 g) were heated in anhydrous ethylene glycol (EG; 5 mL) with 2-equivs of NaOH at 150ЊC for 80 min or 180ЊC for 15 min to convert them quantitatively to disodium terephthalate (Na 2 -TPA) and EG. The disodium salt was precipitated quantitatively