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An FTIR Study on the Solid‐State Copolymerization of bis(2‐hydroxyethyl)terephthalate and Poly(butylene terephthalate) and the Resulting Copolymers
Author(s) -
Ziari Maya,
van Asselen Otto,
Jansen Martijn,
Goossens Han,
Schoenmakers Peter
Publication year - 2008
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200850533
Subject(s) - copolymer , crystallization , polymer chemistry , fourier transform infrared spectroscopy , condensation polymer , materials science , infrared spectroscopy , catalysis , chemistry , chemical engineering , polymer , organic chemistry , composite material , engineering
Summary: The first aim of this work was to study the solid‐state copolymerization (SSP) of bis(2‐hydroxyethyl)terephthalate (BHET) with poly(butylene terephthalate) (PBT) by FTIR spectroscopy. The development of the chemical microstructure during the SSP‐reaction was examined as a function of the BHET content, showing the different regimes. The thermal behaviour of the resulting copolymers with different BHET contents was also investigated during cooling using infra‐red dynamic spectra. For low BHET‐concentrations, only crystallization of PBT‐sequences was observed, while for high BHET‐concentrations, only crystallization of PET‐sequences was detectable with a cross‐over behaviour for intermediate concentrations.