Mechanical properties and chemical stability of pivalolactone-based poly(ether ester)s

Share/Save/Bookmark

Tijsma, E.J. and Does van der, L. and Bantjes, A. and Vulic, I. (1994) Mechanical properties and chemical stability of pivalolactone-based poly(ether ester)s. Polymer, 35 (24). pp. 5483-5490. ISSN 0032-3861

[img]
Preview
PDF
740Kb
Abstract:The processing, mechanical and chemical properties of poly(ether ester)s, prepared from pivalolactone (PVL), 1,4-butanediol (4G) and dimethyl terephthalate (DMT), were studied. The poly(ether ester)s could easily be processed by injection moulding, owing to their favourable rheological and thermal properties. The tensile response of a poly(ether ester) with a butylene terephthalate (4GT) content of 72 mol%, which exhibited the phenomena of necking and strain-hardening, was related to the morphology of these copolymers. The influence of the short 4G-PVL segments was reflected in a high Young's modulus and yield stress, and resulted in a tough behaviour for the poly(ether ester), with an ultimate elongation of 500%. The poly(ether ester)s were stable towards treatment at room temperature with water or weakly acidic or alkaline solutions. Conditioning at 90°C in water for 264 h resulted in a water uptake of 1 wt%, whereas the rate of hydrolysis was 0.0003 (expressed in An rel h-1) for the poly(ether ester) with a 4GT content of 72 mol%. Although a decay in the mechanical properties for the PVL-based poly(ether ester) after exposure to water at 90°C was observed, these materials were assumed to have a higher hydrolytical stability than other poly(ether ester)s
Item Type:Article
Copyright:© 1994 Elsevier Science
Research Group:
Link to this item:http://purl.utwente.nl/publications/9800
Official URL:http://dx.doi.org/10.1016/S0032-3861(05)80012-6
Export this item as:BibTeX
EndNote
HTML Citation
Reference Manager

 

Repository Staff Only: item control page

Metis ID: 105344