Stabilization of γ-sterilized biomedical polyolefins by synergistic mixtures of oligomeric stabilizers

Article

Alariqi, Sameh. A.S., Annamalai, A. Pratheep, Rao, B.S.M., Tevtia, Amit K. and Singh, R.P.. 2006. "Stabilization of γ-sterilized biomedical polyolefins by synergistic mixtures of oligomeric stabilizers ." Polymer Degradation and Stability. 91 (10), pp. 2451-2464. https://doi.org/10.1016/j.polymdegradstab.2006.03.010
Article Title

Stabilization of γ-sterilized biomedical polyolefins by synergistic mixtures of oligomeric stabilizers

ERA Journal ID1691
Article CategoryArticle
AuthorsAlariqi, Sameh. A.S., Annamalai, A. Pratheep, Rao, B.S.M., Tevtia, Amit K. and Singh, R.P.
Journal TitlePolymer Degradation and Stability
Journal Citation91 (10), pp. 2451-2464
Number of Pages14
Year2006
PublisherElsevier
Place of PublicationUnited Kingdom
ISSN0141-3910
0144-2880
1873-2321
Digital Object Identifier (DOI)https://doi.org/10.1016/j.polymdegradstab.2006.03.010
Web Address (URL)https://www.sciencedirect.com/science/article/pii/S0141391006000942
AbstractThe stabilization of polyolefins against gamma-sterilization has been studied with single or binary additive system. The present attempt is to utilize synergistic mixtures of stabilizers which are approved for food contact applications. Ethylene-propylene (EP) copolymer has been melt-mixed with hindered amine stabilizers (HAS), phenolic antioxidants and organo-phosphites (hydroperoxide decomposer). Samples were sterilized with different doses of gamma-radiation. Stabilization was characterized in terms of changes in the functional groups (oxidation products), tensile properties, yellowing and surface morphology by FTIR spectroscopy, Instron, colorimetry (reflectance) and scanning electron microscopy (SEM), respectively. Results were discussed by comparing the stabilizing efficiency of mixtures with and without phenol system. Among phenol containing systems, where we mostly observe discoloration due to the oxidation of hindered phenol and the combination of secondary HAS, tertiary HAS, organo-phosphite and hindered phenol exhibited improved stabilization efficiency than single or binary additive systems. The mixture of secondary HAS and tertiary HAS, has shown antagonistic effect of stabilization whereas their combination with organo-phosphite has exhibited synergistic effect of stabilization even at higher doses of gamma-sterilization. The effects have been explained through the interaction between the stabilizers. (c) 2006 Elsevier Ltd. All rights reserved.
Keywordsethylene-propylene copolymer; g-Sterilization; Stabilization; Discoloration; Tensile properties; Antioxidants
Contains Sensitive ContentDoes not contain sensitive content
ANZSRC Field of Research 2020340302. Macromolecular materials
Public NotesFiles associated with this item cannot be displayed due to copyright restrictions.
Byline AffiliationsNational Chemical Laboratory, India
University of Pune, India
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Dolan, Grace K., Yakubov, Gleb E., Greene, George W., Amiralian, NasimNasim, Annamalai, Pratheep K., Martin, Darren J. and Stokes, Jason R.. 2016. "Dip-and-Drag Lateral Force Spectroscopy for Measuring Adhesive Forces between Nanofibers." Langmuir: the ACS journal of surfaces and colloids. 32 (50), pp. 13340-13348. https://doi.org/10.1021/acs.langmuir.6b03467
Understanding the Ageing Aspects of Natural Ester Based Insulation liquid in Power Transformer
Badana, Kapila, Ekanayake, Chandima, Saha, Tapan Kumar and Annamalai, Pratheep Kumar. 2016. "Understanding the Ageing Aspects of Natural Ester Based Insulation liquid in Power Transformer." IEEE Transactions on Dielectrics and Electrical Insulation. 23 (1), pp. 246-257. https://doi.org/10.1109/Tdei.2015.004744
Systematic production of high quality and low cost cellulose nanofibres and their potential applications
Amiralian, Nasim, Annamalai, Pratheep and Martin, Darren J.. 2016. "Systematic production of high quality and low cost cellulose nanofibres and their potential applications." TAPPI International Conference on Nanotechnology for Renewable Materials 2016. Grenoble, France 13 - 16 Jun 2016 France.
Scalable processing of thermoplastic polyurethane nanocomposites toughened with nanocellulose
Amin, Khairatun Najwa Mohd, Amiralian, Nasim, Annamalai, Pratheep K., Edwards, Grant, Chaleat, Celine and Martin, Darren J.. 2016. "Scalable processing of thermoplastic polyurethane nanocomposites toughened with nanocellulose." Chemical Engineering Journal. 302, pp. 406-416. https://doi.org/10.1016/j.cej.2016.05.067
Cleaner and scalable processing of cellulose nanocrystal reinforced thermoplastic polyurethane nanocomposites
Mohd Amin, Khairatun Najwa, Amin, Mohd, Annamalai, Pratheep Kumar, Edwards, Grant A.B., Chaleat, Celine and Martin, Darren J.. 2016. "Cleaner and scalable processing of cellulose nanocrystal reinforced thermoplastic polyurethane nanocomposites." TAPPI International Conference on Nanotechnology for Renewable Materials 2016. Grenoble, France 13 - 16 Jun 2016 France.
Polymers from Biomass: Characterization, Modification, Degradation, and Applications
Adsul, Mukund, Tuli, Deepak K., Annamalai, Pratheep K., Depan, Dilip and Shankar, Shiv. 2016. "Polymers from Biomass: Characterization, Modification, Degradation, and Applications." International Journal of Polymer Science. 2016. https://doi.org/10.1155/2016/1857297
A systematic study substituting polyether polyol with palm kernel oil based polyester polyol in rigid polyurethane foam
Septevani, Athanasia A., Evans, David A.C., Chaleat, Celine, Martin, Darren J. and Annamalai, Pratheep K.. 2015. "A systematic study substituting polyether polyol with palm kernel oil based polyester polyol in rigid polyurethane foam." Industrial Crops and Products. 66, pp. 16-26. https://doi.org/10.1016/j.indcrop.2014.11.053
Production of cellulose nanocrystals via a scalable mechanical method
Amin, Khairatun Najwa Mohd, Annamalai, Pratheep Kumar, Morrow, Isabel Catherine and Martin, Darren. 2015. "Production of cellulose nanocrystals via a scalable mechanical method." RSC Advances: an international journal to further the chemical sciences. 5 (70), pp. 57133-57140. https://doi.org/10.1039/c5ra06862b
Easily deconstructed, high aspect ratio cellulose nanofibres from Triodia pungens; an abundant grass of Australia's arid zone
Amiralian, Nasim, Annamalai, Pratheep K., Memmott, Paul, Taran, Elena, Schmidt, Susanne and Martin, Darren J.. 2015. "Easily deconstructed, high aspect ratio cellulose nanofibres from Triodia pungens; an abundant grass of Australia's arid zone." RSC Advances: an international journal to further the chemical sciences. 5 (41), pp. 32124-32132. https://doi.org/10.1039/c5ra02936h
Isolation of cellulose nanofibrils from Triodia pungens via different mechanical methods
Amiralian, Nasim, Annamalai, Pratheep K., Memmott, Paul and Martin, Darren. J.. 2015. "Isolation of cellulose nanofibrils from Triodia pungens via different mechanical methods ." Cellulose. 22 (4), pp. 2483-2498. https://doi.org/10.1007/s10570-015-0688-x
Erratum to “Optimization of resin extraction from an Australian arid grass ‘Triodia pungens’ and its preliminary evaluation as an anti-termite timber coating” [Ind. Crops Prod. 59 (2014) 241–247]
Amiralian, Nasim, Annamalai, Pratheep K., Fitzgerald, Chris, Memmott, Paul and Martin, Darren J.. 2015. "Erratum to “Optimization of resin extraction from an Australian arid grass ‘Triodia pungens’ and its preliminary evaluation as an anti-termite timber coating” [Ind. Crops Prod. 59 (2014) 241–247]." Industrial Crops and Products. 67, pp. 512-512. https://doi.org/10.1016/j.indcrop.2014.12.037
Optimisation of resin extraction from an Australian arid grass ‘Triodia pungens’ and its preliminary evaluation as an anti-termite timber coating
Amiralian, Nasim, Annamalai, Pratheep K., Fitzgerald, Chris, Memmott, Paul and Martin, Darren J.. 2014. "Optimisation of resin extraction from an Australian arid grass ‘Triodia pungens’ and its preliminary evaluation as an anti-termite timber coating." Industrial Crops and Products. 59, pp. 241-247. https://doi.org/10.1016/j.indcrop.2014.04.045
Stability of chitosan/montmorillonite nanohybrid towards enzymatic degradation on grafting with poly(lactic acid)
Depan, D., Annamalai, A. Pratheep, Singh, R. P. and Misra, R. D. K.. 2014. "Stability of chitosan/montmorillonite nanohybrid towards enzymatic degradation on grafting with poly(lactic acid)." Materials Science and Technology. 30 (5), pp. 587-592. https://doi.org/10.1179/1743284713y.0000000501
Can clay nanoparticles accelerate environmental biodegradation of polyolefins?
Annamalai, P. K. and Martin, D. J.. 2014. "Can clay nanoparticles accelerate environmental biodegradation of polyolefins?" Materials Science and Technology. 30 (5), pp. 593-602. https://doi.org/10.1179/1743284713y.0000000498
Water-Responsive Mechanically Adaptive Nanocomposites Based on Styrene–Butadiene Rubber and Cellulose Nanocrystals—Processing Matters
Annamalai, Pratheep K., Dagnon, Koffi L., Monemian, Seyedali, Foster, E. Johan, Rowan, Stuart J. and Weder, Christoph. 2014. "Water-Responsive Mechanically Adaptive Nanocomposites Based on Styrene–Butadiene Rubber and Cellulose Nanocrystals—Processing Matters ." ACS Applied Materials and Interfaces. 6 (2), pp. 967-76. https://doi.org/10.1021/am404382x
Studies on the feasibility of recycled polystyrene doped with NLO active meta-Nitroaniline for optoelectronics applications
Sureshkumar, M.S., Goyal, R.L., Negi, Y.s., Pratheepkumar, A., Reddy, K. Raghunatha, Singh, R.P., Dadge, J.W. and Aiyer, R.C.. 2011. "Studies on the feasibility of recycled polystyrene doped with NLO active meta-Nitroaniline for optoelectronics applications ." Polymers for Advanced Technologies. 22 (12), pp. 1865-1871. https://doi.org/10.1002/pat.1685
Bioinspired Mechanically Adaptive Polymer Nanocomposites with Water-Activated Shape-Memory Effect
Mendez, Julie, Annamalai, Pratheep K., Eichhorn, Stephen J., Rusli, Rafeadah, Rowan, Stuart J., Foste, E. Johan and Weder, Christoph. 2011. "Bioinspired Mechanically Adaptive Polymer Nanocomposites with Water-Activated Shape-Memory Effect." Macromolecules. 44 (17), pp. 6827-6835. https://doi.org/10.1021/ma201502k
Commercial aspects associated with bio-nanocomposites
Lonkar, Sunil P., Kumar, A. Pratheep and Singh, R. P.. 2011. "Commercial aspects associated with bio-nanocomposites." Nanocomposites with Biodegradable Polymers: Synthesis, Properties, and Future Perspectives. United Kingdom. Oxford University Press. pp. 400-420
Kinetics of mass transfer during vapour-induced phase separation (VIPS) process and its influence on poly-(vinylidene fluoride) (PVDF)membrane structure and surface morphology
Annamalai, Pratheep Kumar, Pochat-Bohatier, Celine, Bouyer, Denis, Li, Chia-Ling, Deratani, André and Wang, Da-Ming. 2011. "Kinetics of mass transfer during vapour-induced phase separation (VIPS) process and its influence on poly-(vinylidene fluoride) (PVDF)membrane structure and surface morphology ." Desalination and Water Treatment. 34 (1-3), pp. 204-210. https://doi.org/10.5004/dwt.2011.2809
Nanoscale particles for polymer degradation and stabilization—Trends and future perspectives
Annamalai, Annamalai Pratheep, Depan, Dilip, Tomer, Namrata Singh and Singh, Raj Pal. 2009. "Nanoscale particles for polymer degradation and stabilization—Trends and future perspectives ." Progress in Polymer Science. 34 (6), pp. 479-515. https://doi.org/10.1016/j.progpolymsci.2009.01.002
Cell proliferation and controlled drug release studies of nanohybrids based on chitosan-g-lactic acid and montmorillonite
Depan, Dilip, Annamalai, Annamalai Pratheep and Singh, Raj Pal. 2009. "Cell proliferation and controlled drug release studies of nanohybrids based on chitosan-g-lactic acid and montmorillonite." Acta Biomaterialia. 5 (1), pp. 93-100. https://doi.org/10.1016/j.actbio.2008.08.007
Single Step Synthesis and Properties of M/MFe2O4 and PVDF/M/MFe2O4 (M = Co, Ni) Magnetic Nanocomposites
Deka, Sasanka, Joy, P. A. and Annamalai, A. Pratheep. 2009. "Single Step Synthesis and Properties of M/MFe2O4 and PVDF/M/MFe2O4 (M = Co, Ni) Magnetic Nanocomposites ." Science of Advanced Materials. 1 (3), pp. 262-268. https://doi.org/10.1166/sam.2009.1053
Effect of γ-dose rate on crystallinity and morphological changes of γ-sterilized biomedical polypropylene
Alariqi, Sameh A.S., Annamalai, A. Pratheep, Rao, B.S.M. and Singh, R.P.. 2009. "Effect of γ-dose rate on crystallinity and morphological changes of γ-sterilized biomedical polypropylene." Polymer Degradation and Stability. 94 (2), pp. 272-277. https://doi.org/10.1016/j.polymdegradstab.2008.10.027
Biocomposites of cellulose reinforced starch: improvement of properties by photo-induced crosslinking
Kumar, Annamalai Pratheep and Singh, Raj Pal. 2008. "Biocomposites of cellulose reinforced starch: improvement of properties by photo-induced crosslinking." Bioresource Technology. 99 (18), pp. 8803-8809. https://doi.org/10.1016/j.biortech.2008.04.045
Novel hybrid of clay, cellulose, and thermoplastics. I. Preparation and characterization of composites of ethylene–propylene copolymer
Kumar, Annamalai Pratheep and Singh, Raj Pal. 2007. "Novel hybrid of clay, cellulose, and thermoplastics. I. Preparation and characterization of composites of ethylene–propylene copolymer." Journal of Applied Polymer Science. 104 (4), pp. 2672-2682. https://doi.org/10.1002/app.25659
Photo-stabilization of EPDM-clay nanocomposites: effect of antioxidant on the preparation and durability
Lonkar, Sunil P., Annamalai, A. Pratheep and Singh, Raj Pal. 2007. "Photo-stabilization of EPDM-clay nanocomposites: effect of antioxidant on the preparation and durability." Polymers for Advanced Technologies. 18 (11), pp. 891-900. https://doi.org/10.1002/pat.925
Stabilization of γ-sterilized biomedical polyolefins by synergistic mixtures of oligomeric stabilizers. Part II. Polypropylene matrix
Alariqi, Sameh A.S., Kumar, A. Pratheep, Rao, B.S.M. Rao and Singh, R.P.. 2007. "Stabilization of γ-sterilized biomedical polyolefins by synergistic mixtures of oligomeric stabilizers. Part II. Polypropylene matrix ." Polymer Degradation and Stability. 92 (2), pp. 299-309. https://doi.org/10.1016/j.polymdegradstab.2006.10.010
Photo-/Bio-degradability of Agro Waste and Ethylene–Propylene Copolymers Composites Under Abiotic and Biotic Environments
Kumar, A. Pratheep, Pandey, Jitendra K., Kumar, Bijendra and Singh, R. P.. 2006. "Photo-/Bio-degradability of Agro Waste and Ethylene–Propylene Copolymers Composites Under Abiotic and Biotic Environments." Journal of Polymers and the Environment. 14 (2), pp. 203-212. https://doi.org/10.1007/s10924-006-0012-9
Preparation and characterization of novel hybrid of chitosan-g-lactic acid and montmorillonite
Depan, Dilip, Annamalai, Annamalai Pratheep and Singh, Raj Pal. 2006. "Preparation and characterization of novel hybrid of chitosan-g-lactic acid and montmorillonite." Journal of Biomedical Materials Research Part A. 78 (2), pp. 372-82. https://doi.org/10.1002/jbm.a.30738
Biodegradation of γ-sterilised biomedical polyolefins under composting and fungal culture environments
Alariqi, Sameh A.S., Kumar, A. Pratheep, Rao, B.S.M. and Singh, R.P.. 2006. "Biodegradation of γ-sterilised biomedical polyolefins under composting and fungal culture environments." Polymer Degradation and Stability. 91 (5), pp. 1105-1116. https://doi.org/10.1016/j.polymdegradstab.2005.07.004
An overview on the degradability of polymer nanocomposites
Pandey, Jitendra K., Reddy, K. Raghunatha, Kumar, A. Pratheep and Singh, R.P.. 2005. "An overview on the degradability of polymer nanocomposites." Polymer Degradation and Stability. 88 (2), pp. 234-250. https://doi.org/10.1016/j.polymdegradstab.2004.09.013
Recent Advances in Biodegradable Nanocomposites
Pandey, Jitendra K., Kumar, A. Pratheep, Misra, Manjusri, Mohanty, Amar K., Drzal, Lawrence T. and Singh, Raj. 2005. "Recent Advances in Biodegradable Nanocomposites ." Journal of Nanoscience and Nanotechnology. 5 (4), pp. 497-526. https://doi.org/10.1166/jnn.2005.111
Degradability of composites, prepared from ethylene–propylene copolymer and jute fiber under accelerated aging and biotic environments
Annamalai, Annamalai Pratheep, Singh, Raj Pal and Sarwade, Bhimrao D.. 2005. "Degradability of composites, prepared from ethylene–propylene copolymer and jute fiber under accelerated aging and biotic environments." Materials Chemistry and Physics. 92 (2-3), pp. 458-469. https://doi.org/10.1016/j.matchemphys.2005.01.027
Synthesis, characterization, and performance evaluation of novel stabilized TDI-based polyurethane coatings under accelerated weathering
Kumar, A. Pratheep, Reddy, K. Raghunatha, Rana, Sravendra, Lonkar, Sunil P., Raut, K.G. and Singh, Raj Pal. 2005. "Synthesis, characterization, and performance evaluation of novel stabilized TDI-based polyurethane coatings under accelerated weathering." Journal of Vinyl and Additive Technology. 11 (1), pp. 13-20. https://doi.org/10.1002/vnl.20032
Biodegradation of packaging materials: Composting of polyolefins
Pandey, Jitendra K., Kumar, A. Pratheep and Singh, R.P.. 2003. "Biodegradation of packaging materials: Composting of polyolefins." Macromolecular Symposia. 197 (1), pp. 411-420. https://doi.org/10.1002/masy.200350735