Influence of e-beam irradiation on the chemical and crystal structure of poly(aliphatic/aromatic-ester) multiblock thermoplastic elastomers

Miroslawa El Fray; Marta Piątek-Hnat; Judit Puskas; Elizabeth Foreman-Orlowski

doi:10.2478/v10026-012-0073-6

.blurhash-client-img { display: none !important; }

Influence of e-beam irradiation on the chemical and crystal structure of poly(aliphatic/aromatic-ester) multiblock thermoplastic elastomers

Green Sciences

Volume 14 (2012): Issue 2 (June 2012)

By: Miroslawa El Fray, Marta Piątek-Hnat, Judit Puskas and Elizabeth Foreman-Orlowski

Open Access

|Jul 2012

Abstract

Poly(aliphatic/aromatic-ester) (PED) multiblock copolymers belong to the class of thermoplastic elastomers (TPEs), characterized by a physical network of semi-crystalline hard segments. The PEDs were modified with e-beam to create an additional network structure. Polymers were evaluated using SEC, WAXS, DSC and quasi-static tensile tests. E-beam irradiation induced a significant increase of molecular weight and tensile strength of the PEDs. This effect, together with the diminished degree of crystallinity can be explained by the formation of chemical crosslinks, which are located in the hard phase segments.

References

Wilkins, E. G., Rees, R. S., Tenenbaum, N. R., Robson, M. & Smith, D. J. Skin and Subcutaneous Tissue Review in General Surgery. In O'Leary JP, Capote LR (eds), 2003, The Physiologic Basis of Surgery, Baltimore, MD, Williams & Wilkins.
Search in Google Scholar
Ong, S. E., Zhang, S., Du, H., Too, H. C. & Aung, K. N. (2007). Influence of silicon concentration on the haemocompatibility of amorphous carbon. Biomaterials, 28, pp. 4033-4038, DOI: 10.1016/j.biomaterials.2007.05.031.10.1016/j.biomaterials.2007.05.031
Search in Google Scholar
El Fray, M., Bartkowiak, A., Prowans, P. & Slonecki, J. (2000), Physical and mechanical behaviour of electron-beam irradiated and ethylene oxide sterilized multiblock polyester. J Mater. Sci. Mater. Med., 11, pp. 757-762, DOI: 10.1023/A:1008936114611.10.1023/A:1008936114611
Search in Google Scholar
Prowans, P., El Fray, M., Slonecki, J. (2002) Biocompatibility studies of new multiblock poly(esterester)s composed of poly(butylene terephthalate) and dimerized fatty acid. Biomaterials, 23, pp. 2973-2978, DOI: 10.1016/S0142-9612(02)00026-1.10.1016/S0142-9612(02)00026-1
Search in Google Scholar
Renke-Gluszko, M. & El Fray, M. (2004), The effect of simulated body fluid on mechanical properties of multiblock poly(aliphatic/aromatic-ester) copolymers. Biomaterials, 25, pp. 5191-5198, DOI: 10.1016/j.biomaterials.2003.12.021.10.1016/j.biomaterials.2003.12.021
Search in Google Scholar
El Fray, M. & Slonecki, J. (1996), Multiblock copolymers consisting of polyester and polyaliphatic blocks. Angew. Mikromol. Chemie, 234, pp. 103-117.10.1002/apmc.1996.052340110
Search in Google Scholar
El Fray, M., Przybytniak, G., Piątek-Flnat, M. & Kornacka, E. (2010), Physical effects of radiation processes in poly(aliphatic/aromatic-ester)s modified with e-beam radiation. Polymer, 51, pp. 1133-1139, DOI: 10.1016/j.polymer.2010.01.028.10.1016/j.polymer.2010.01.028
Search in Google Scholar
Mallegol, J, Carllson, DJ, Deschenes, L. (2001), Post-γ-irradiation reactions in vitamin Estabilised and unstabilised HDPE. Nucl Instr Meth Phys Res B, 185, pp. m283-293, DOI: 10.1016/S0168-583X(01)00944-2.10.1016/S0168-583X(01)00944-2
Search in Google Scholar
Gorna, K. & Gogolewski, S. (2003), The effect of gamma radiation on molecular stability and mechanical properties of biodegradable polyurethanes for medical applications. Polym Degrad Stab, 79, pp. 465-474, DOI: 10.1016/S0141-3910(02)00362-2.10.1016/S0141-3910(02)00362-2
Search in Google Scholar
Gotz, C., Handge, U. A., Piatek, M., El Fray, M. & Altstadt, V. (2009), Influence of E-Beam Irradiation on the Dynamic Creep and Fatigue Properties of Poly(aliphatic/aromatic-ester) Copolymers for Biomedical Applications. Polymer, 50, pp. 5499-5507, DOI: 10.1016/j.polymer.2009.09.051.10.1016/j.polymer.2009.09.051
Search in Google Scholar
El Fray, M. & Altstädt, V. (2003), Fatigue behaviour of multiblock thermoplastic elastomers. 2. Dynamic creep of poly(aliphatic/aromatic-ester) copolymers. Polymer, 44, pp. 4643-4650, DOI: 10.1016/S0032-3861(03)00418-X.10.1016/S0032-3861(03)00418-X
Search in Google Scholar

Articles in this issue

DOI: https://doi.org/10.2478/v10026-012-0073-6 | Journal eISSN: 3072-0389

Journal RSS Feed

Language: English

Page range: 70 - 74

Published on: Jul 2, 2012

Published by: West Pomeranian University of Technology, Szczecin

In partnership with: Paradigm Publishing Services

Publication frequency: Volume open

Keywords:

biopolymers,

thermoplastic elastomers,

e-beam irradiation,

multiblock polyesters,

DSC

Related subjects:

Industrial chemistry,

Biotechnology,

Chemical engineering,

Process engineering

© 2012 Miroslawa El Fray, Marta Piątek-Hnat, Judit Puskas, Elizabeth Foreman-Orlowski, published by West Pomeranian University of Technology, Szczecin
This work is licensed under the Creative Commons License.

Volume 14 (2012): Issue 2 (June 2012)