Poly(ethylene terephthalate) synthesis catalysed by chelated Sn, Zn and Mg complexes. (21st October 2015)

• Record Type: Journal Article
• Authors: Švec, Petr; Hubená, Petra; Růžičková, Zdeňka; Holubová, Jana; Pouzar, Miloslav; Merna, Jan; Růžička, Aleš
• Is Part Of: Applied organometallic chemistry. Volume 30:Number 1(2016:Jan.)
• Page Start: 20
• Page End: 25
• Publication Date: 2015-10-21
• Subjects: organotin(IV) and organozinc compounds -- magnesium complex -- chelating ligand -- catalysis -- poly(ethylene terephthalate); Organometallic chemistry -- Periodicals; Organometallic compounds -- Periodicals; 547.05
• DOI: 10.1002/aoc.3393
• Languages: English
• ISSNs: 0268-2605

Abstract

Abstract : A series of four C, N ‐chelated diorganotin(IV) compounds, namely (L CN )2 Sn(OCH2 CH2 O) (1 ), [L CN BuSn(OCH2 CH2 O)]2 (2 ), (L CN )2 Sn(1, 2‐(O)2 ‐3, 5‐ t Bu2 C6 H2 ) (3 ) and [L CN BuSn(1, 2‐(O)2 ‐3, 5‐ t Bu2 C6 H2 )]2 (4 ) (L CN = 2‐(Me2 NCH2 )C6 H4 ), one zinc species, namely L NO ZnEt (5 ) (L NO = [2‐(MeO)C6 H4 ]NC(Me)C(H)C(Me)O), and one magnesium complex, namely [L NN Mg]6 (6 ), (L NN = [2‐(Me2 NCH2 )C6 H4 ]N), were used as catalysts for the synthesis of poly(ethylene terephthalate) (PET) from dimethyl terephthalate andethylene glycol . Prepared PET samples were primarily characterized using the size exclusion chromatography technique. The highest number‐average molar mass of prepared PET samples reached 10.7 kg mol −1 . Novel dimeric compound2 was structurally characterized using both multinuclear NMR spectroscopy and X‐ray diffraction analysis. In addition, an alternative synthesis of1 is described. Copyright © 2015 John Wiley & Sons, Ltd. Abstract : Catalytic activity of six chelated Sn, Zn, and Mg complexes within the synthesis of poly(ethylene terephthalate) (PETE) from dimethyl terephthalate and ethylene glycol was studied. Prepared PETE samples were characterized by common SEC and DSC techniques. The efficiency of investigated complexes is compared to commercially used antimony‐based catalysts.