Copolymers of PBT and nylon 4T

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Gaymans, R.J. and Haan, J.L. de and Nieuwenhuize, O. van (1993) Copolymers of PBT and nylon 4T. Journal of Polymer Science, Part A: Polymer chemistry, 31 (2). pp. 575-580. ISSN 0887-624X

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Abstract:Polybutylene terephthalate-nylon 4T copolymers (PBT-PA 4T) are synthesized from the diamide of diaminobutane and dimethyl terephthalate (DMT) with butane diol and more DMT in a concentration range of up to 50% PA 4T. The polymerization conditions were similar to those for PBT: first, a melt polymerization, followed by solid-state post-condensation. The materials were studied by differential scanning analysis (DSC) (melting and crystallization behavior) and dynamic mechanical thermal analysis (DMTA) (glass transitions and torsion moduli). The water absorptions were determined at 100% RH. By increasing the PA 4T content in the copolymers, melting temperatures increased strongly, heats of fusion decreased slightly, and glass transition temperatures increased linearly. The torsion moduli above the glass transition temperature were higher.
Item Type:Article
Copyright:© 1993 John Wiley & Sons
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Link to this item:http://purl.utwente.nl/publications/71036
Official URL:http://dx.doi.org/10.1002/pola.1993.080310231
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