The microstructure of poly(butylene terephthalate) copolymers via C-13 NMR sequence distribution analysis: Solid-state copolymerization versus melt copolymerization
(2006) Analytica Chimica Acta — Vol. 557, n° 1-2, p. 19-30 (2006)
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- Authors
Bailly, Christian 
- Abstract
- Two diols, 2,2-bis(4-[hydroxyethoxy]phenyl)propane (Dianol 220 (R)) and bis(2-hydroxyethyl)terephthalate (BHET), were incorporated into poly(butylene terephthalate) (PBT) by solid-state polymerization (SSP) and melt polymerization (MP). Different PBT/diol ratios were used to obtain copolymers with different compositions. C-13 NMR spectroscopy was used to analyze the sequence distribution and the data analysis was discussed in detail. Both Dianol and BHET were randomly incorporated in the MP copolymers. For both PBT-Dianol and PBT-BHET copolymers obtained via SSP, a non-random, blocky microstructure was obtained. For the PBT-Dianol copolymers, the randomness increased for increased fractions of incorporated Dianol. For the PBT-BHET copolymers, the randomness continuously decreased with increased fractions of incorporated BHET. (c) 2005 Elsevier B.V. All rights reserved.
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Citations
Jansen, M., Goossens, J., de Wit, G., Bailly, C., & Koning, C. (2006). The microstructure of poly(butylene terephthalate) copolymers via C-13 NMR sequence distribution analysis: Solid-state copolymerization versus melt copolymerization. Analytica Chimica Acta, 557(1-2), 19-30. https://doi.org/10.1016/j.aca.2005.05.063 (Original work published 2006)