The synthesis of poly(butylene terephthalate) from terephthalic acid, Part II: assessment of the first stage of the polymerization process

J. Devroede, R. Duchateau, C.E. Koning

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)

Abstract

The production of poly(butylene terephthalate) (PBT) struggles with the formation of substantial amounts of tetrahydrofuran (THF). When PBT is synthesized from terephthalic acid (TPA) instead of dimethyl terephthalate (DMT), even more THF is formed, mainly during the first stage of the melt polymerization process. Although a lot of literature reports on the existence of this side reaction in both processes, to the best of our knowledge, a comparison, which reveals the importance of the acidity and insolubility of TPA on the THF formation, was never described. Finally, an interesting study was performed on the THF formation during the synthesis of PBT from mixtures of DMT and TPA as well as from the completely soluble monomethyl terephthalate (MMT).
Original languageEnglish
Pages (from-to)2427-2434
JournalJournal of Applied Polymer Science
Volume114
Issue number4
DOIs
Publication statusPublished - 2009

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