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- Title
Single‐step solution polymerization of poly(alkylene terephthalate)s: synthesis parameters and polymer characterization.
- Authors
Giol, Elena Diana; Van den Brande, Niko; Van Mele, Bruno; Van Vlierberghe, Sandra; Dubruel, Peter
- Abstract
Abstract: Poly(alkylene terephthalate)s represent one of the most frequently used polymer classes worldwide. Well‐known examples include poly(ethylene terephthalate) (n = 2) and poly(butylene terephthalate) (n = 4). The conventional synthesis method for these polymers is based on melt polycondensation, a two‐stage process performed under harsh conditions that includes the synthesis of an intermediate prepolymer and the presence of a catalyst, which may induce toxicity issues. The present work reports on a straightforward single‐step solution polycondensation method performed under mild conditions and in the absence of a catalyst. A homologous series of poly(alkylene terephthalate)s (n = 5 − 10) of molar masses up to 20 000 g mol−1 and dispersity <2.4 was synthesized and characterized thoroughly. Great attention was given to the thermal properties assessment by using state‐of‐the‐art techniques and a highly sensitive prototype technique called rapid heat − cool DSC. Similar to melt‐synthesized polyesters, a particular odd − even trend of the thermal properties versus the number of methylene groups within the monomer unit was revealed. To the best of our knowledge, this is the first report covering a single‐step solution‐based polycondensation performed in the absence of a catalyst that results in highly reproducible polyesters possessing unaltered thermal properties compared to polyesters synthesized through industrially applied conventional routes. © 2017 Society of Chemical Industry
- Subjects
POLYMERIZATION; SOLUTION (Chemistry); POLYETHYLENE; POLYCONDENSATION; INTERMEDIATES (Chemistry); THERMAL properties of polymers
- Publication
Polymer International, 2018, Vol 67, Issue 3, p292
- ISSN
0959-8103
- Publication type
Article
- DOI
10.1002/pi.5508