Summary
This paper presents the effect of gamma irradiation on polyethylene stabilized with two derivatives of carnosic acid. LDPE-stabilized samples were subjected to high energy radiation on three doses (5, 10 and 20 kGy) on the sterilization range of polymers. The stability of radiochemically degraded LDPE was achieved by oxygen uptake at 190 °C under isothermal and isobaric conditions. Antioxidant concentration of 0.25% w/w was selected to demonstrate the availability of these compounds for delaying oxidative degradation under hard service circumstances. The influence of substitution in antioxidant molecules on the kinetic parameters of thermal stabilization is discussed. Some mechanistic aspects in relation to the intermediates of additives are assumed.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
Woods R, Pikaev A (Eds) (1994) Applied Radiation Chemistry: Radiation Processing, ch. 9, Wiley, New York
Suwanprateev J, Trongton P (2003) J Mater Sci, Mater Medicine 14:851
Dalai Siqion, Wenxiu Chen (2003) J Appl Polym Sci 86:1296
Stojanović Z, Kačarević-Popović Z, Galović S, Miličević D, Suljovrujić E (2005) Polym Degrad Stabil 87:279
Schwetlick K, Habicher WD (2002) Polym Degrad Stabil 78:35
Tzenoglou CJ, Kartalis CN, Papaspyrides CD, Pfendner R (2002) Adv Polym Technol 21:260
Zaharescu T, Jipa S, Setnescu R, Santos C, Gigante B, Gorghiu LM, Mihalcea I, Podină C (2002) Polym Bull 49:289
Bottino FA, Cinquegrani AS, Di Pasquale G, Leonardi L, Orestano A, Pollicino A (2004) Polym Testing 23:779
Zaharescu T, Kaci M, Setnescu R, Jipa S, Touati N, Polym Bull in press (PB_05_0327_R2)
American Standard “Sterilization of health care products – Radiation sterilization”, ANSI/AAM/ISO 11137-1994
European standard “Sterilization of medical devices. Validation and routine control of sterilization by irradiation”, EN 552 (1994)
*** IAEA 1987 Guideline for industrial radiation sterilization of disposable medical products. 60Co gamma irradiation
Fengmei Li, Ying Wang, Xiaoguang Liu, Baoyu Yang (2000) Rad Phys Chem 57:435
Zimek Z, Kaluska I (2002) Radiat Phys Chem 63:673
Woo Lecon, Sanford CL (2002) Radiat Phys Chem 63:845
Gigante B, Santos C, Silva AM, Curto, MJM Nascimento, MSJ Pinto E, Pedro M, Cerqueira F, Pinto MM, Duarte MP, Laires A, Rueff J, Gonçalves J, Pegado MI, Valdeira ML (2003) Bioorg. Med. Chem 11:1631
Zaharescu T, Mihalcea I (1994) Mater Plast (Bucharest) 31:139
Singh A (1999) Radiat Phys Chem 56:375
von Sonntag C, Bothe E, Ulanski P, Adhikary A (1999) Radiat Phys Chem 55:599
Chapiro A (Ed) (1962) Radiation Chemistry of Polymer Systems, Interscience Publishers, New York
Pentimalli M, Ragni P, Righini G, Capitani D (2000) Radiat Phys Chem 57:385
Albano P, Perera R, Silva P, Sáncez Y (2003) Polym Bull 51:135
Pospíšil J, Horák Z, Pilař J, Billingham NC, Zweifel H, Nešpůrek (2003) Polym Degrad Stabil 82:145
Wenkert E, Fuchs A, McChesney JD (1965) J Org Chem 30:2931
Pospíšil J, Klemchuk P (Eds) (1990) Oxidation Inhibition in Organic Material, CRC Press, Boca Raton
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Zaharescu, T., Jipa, S. & Gigante, B. Stabilized polyethylene on the sterilization dose range. Polym. Bull. 57, 729–735 (2006). https://doi.org/10.1007/s00289-006-0628-x
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00289-006-0628-x