Profile of oxidation in irradiated polyethylene
Yeom, B. ; Yu, Y.-J. ; McKellop, H. A. ; Salovey, R.
Bognor Regis [u.a.] : Wiley-Blackwell
Published 1998
Bognor Regis [u.a.] : Wiley-Blackwell
Published 1998
| ISSN: |
0887-624X
|
|---|---|
| Keywords: |
ultrahigh molecular weight polyethylene (UHMWPE) ; radiation sterilization ; orthopedic prosthesis ; subsurface oxidation ; Chemistry ; Polymer and Materials Science
|
| Source: |
Wiley InterScience Backfile Collection 1832-2000
|
| Topics: |
Chemistry and Pharmacology
|
| Notes: |
Following gamma irradiation in air which causes bond scission and yields large concentrations of peroxy radicals, maximum oxidation and an increase in crystallinity occurs on the surface of ultrahigh molecular weight polyethylene. Here, bimolecular reactions of peroxy radicals generate carbonyls, mostly ketones. On the polymer surface, peroxy radicals continue to react over time periods of years to generate carbonyls and chain scission. Peroxy radicals in the interior of the polymer abstract hydrogens and form hydroperoxides, inducing chain reactions and a slow but continue increase of ketone. Within the polymer sample, to a decreasing depth with increasing dose, a reduced concentration of oxygen is available to react with radiolytic radicals, so that more efficient crosslinking and a low level of hydroperoxide chain reaction occur. After long periods of time a surface maximum in carbonyl concentration is produced. Heating polyethylene in high pressures of oxygen accelerates the oxidative process. © 1998 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 36: 329-339, 1998
|
| Additional Material: |
11 Ill.
|
| Type of Medium: |
Electronic Resource
|
| _version_ | 1798297732053467138 |
|---|---|
| addmaterial | 11 Ill. |
| autor | Yeom, B. Yu, Y.-J. McKellop, H. A. Salovey, R. |
| autorsonst | Yeom, B. Yu, Y.-J. McKellop, H. A. Salovey, R. |
| datenlieferant | nat_lic_papers |
| hauptsatz | hsatz_simple |
| identnr | NLM164015450 |
| iqvoc_descriptor_keyword | iqvoc_00000092:Materials |
| issn | 0887-624X |
| journal_name | Journal of Polymer Science Part A: Polymer Chemistry |
| materialart | 1 |
| notes | Following gamma irradiation in air which causes bond scission and yields large concentrations of peroxy radicals, maximum oxidation and an increase in crystallinity occurs on the surface of ultrahigh molecular weight polyethylene. Here, bimolecular reactions of peroxy radicals generate carbonyls, mostly ketones. On the polymer surface, peroxy radicals continue to react over time periods of years to generate carbonyls and chain scission. Peroxy radicals in the interior of the polymer abstract hydrogens and form hydroperoxides, inducing chain reactions and a slow but continue increase of ketone. Within the polymer sample, to a decreasing depth with increasing dose, a reduced concentration of oxygen is available to react with radiolytic radicals, so that more efficient crosslinking and a low level of hydroperoxide chain reaction occur. After long periods of time a surface maximum in carbonyl concentration is produced. Heating polyethylene in high pressures of oxygen accelerates the oxidative process. © 1998 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 36: 329-339, 1998 |
| package_name | Wiley-Blackwell |
| publikationsjahr_anzeige | 1998 |
| publikationsjahr_facette | 1998 |
| publikationsjahr_intervall | 8004:1995-1999 |
| publikationsjahr_sort | 1998 |
| publikationsort | Bognor Regis [u.a.] |
| publisher | Wiley-Blackwell |
| reference | 36 (1998), S. 329-339 |
| schlagwort | ultrahigh molecular weight polyethylene (UHMWPE) radiation sterilization orthopedic prosthesis subsurface oxidation Chemistry Polymer and Materials Science |
| search_space | articles |
| shingle_author_1 | Yeom, B. Yu, Y.-J. McKellop, H. A. Salovey, R. |
| shingle_author_2 | Yeom, B. Yu, Y.-J. McKellop, H. A. Salovey, R. |
| shingle_author_3 | Yeom, B. Yu, Y.-J. McKellop, H. A. Salovey, R. |
| shingle_author_4 | Yeom, B. Yu, Y.-J. McKellop, H. A. Salovey, R. |
| shingle_catch_all_1 | Yeom, B. Yu, Y.-J. McKellop, H. A. Salovey, R. Profile of oxidation in irradiated polyethylene ultrahigh molecular weight polyethylene (UHMWPE) radiation sterilization orthopedic prosthesis subsurface oxidation Chemistry Polymer and Materials Science ultrahigh molecular weight polyethylene (UHMWPE) radiation sterilization orthopedic prosthesis subsurface oxidation Chemistry Polymer and Materials Science Following gamma irradiation in air which causes bond scission and yields large concentrations of peroxy radicals, maximum oxidation and an increase in crystallinity occurs on the surface of ultrahigh molecular weight polyethylene. Here, bimolecular reactions of peroxy radicals generate carbonyls, mostly ketones. On the polymer surface, peroxy radicals continue to react over time periods of years to generate carbonyls and chain scission. Peroxy radicals in the interior of the polymer abstract hydrogens and form hydroperoxides, inducing chain reactions and a slow but continue increase of ketone. Within the polymer sample, to a decreasing depth with increasing dose, a reduced concentration of oxygen is available to react with radiolytic radicals, so that more efficient crosslinking and a low level of hydroperoxide chain reaction occur. After long periods of time a surface maximum in carbonyl concentration is produced. Heating polyethylene in high pressures of oxygen accelerates the oxidative process. © 1998 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 36: 329-339, 1998 0887-624X 0887624X Wiley-Blackwell |
| shingle_catch_all_2 | Yeom, B. Yu, Y.-J. McKellop, H. A. Salovey, R. Profile of oxidation in irradiated polyethylene ultrahigh molecular weight polyethylene (UHMWPE) radiation sterilization orthopedic prosthesis subsurface oxidation Chemistry Polymer and Materials Science ultrahigh molecular weight polyethylene (UHMWPE) radiation sterilization orthopedic prosthesis subsurface oxidation Chemistry Polymer and Materials Science Following gamma irradiation in air which causes bond scission and yields large concentrations of peroxy radicals, maximum oxidation and an increase in crystallinity occurs on the surface of ultrahigh molecular weight polyethylene. Here, bimolecular reactions of peroxy radicals generate carbonyls, mostly ketones. On the polymer surface, peroxy radicals continue to react over time periods of years to generate carbonyls and chain scission. Peroxy radicals in the interior of the polymer abstract hydrogens and form hydroperoxides, inducing chain reactions and a slow but continue increase of ketone. Within the polymer sample, to a decreasing depth with increasing dose, a reduced concentration of oxygen is available to react with radiolytic radicals, so that more efficient crosslinking and a low level of hydroperoxide chain reaction occur. After long periods of time a surface maximum in carbonyl concentration is produced. Heating polyethylene in high pressures of oxygen accelerates the oxidative process. © 1998 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 36: 329-339, 1998 0887-624X 0887624X Wiley-Blackwell |
| shingle_catch_all_3 | Yeom, B. Yu, Y.-J. McKellop, H. A. Salovey, R. Profile of oxidation in irradiated polyethylene ultrahigh molecular weight polyethylene (UHMWPE) radiation sterilization orthopedic prosthesis subsurface oxidation Chemistry Polymer and Materials Science ultrahigh molecular weight polyethylene (UHMWPE) radiation sterilization orthopedic prosthesis subsurface oxidation Chemistry Polymer and Materials Science Following gamma irradiation in air which causes bond scission and yields large concentrations of peroxy radicals, maximum oxidation and an increase in crystallinity occurs on the surface of ultrahigh molecular weight polyethylene. Here, bimolecular reactions of peroxy radicals generate carbonyls, mostly ketones. On the polymer surface, peroxy radicals continue to react over time periods of years to generate carbonyls and chain scission. Peroxy radicals in the interior of the polymer abstract hydrogens and form hydroperoxides, inducing chain reactions and a slow but continue increase of ketone. Within the polymer sample, to a decreasing depth with increasing dose, a reduced concentration of oxygen is available to react with radiolytic radicals, so that more efficient crosslinking and a low level of hydroperoxide chain reaction occur. After long periods of time a surface maximum in carbonyl concentration is produced. Heating polyethylene in high pressures of oxygen accelerates the oxidative process. © 1998 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 36: 329-339, 1998 0887-624X 0887624X Wiley-Blackwell |
| shingle_catch_all_4 | Yeom, B. Yu, Y.-J. McKellop, H. A. Salovey, R. Profile of oxidation in irradiated polyethylene ultrahigh molecular weight polyethylene (UHMWPE) radiation sterilization orthopedic prosthesis subsurface oxidation Chemistry Polymer and Materials Science ultrahigh molecular weight polyethylene (UHMWPE) radiation sterilization orthopedic prosthesis subsurface oxidation Chemistry Polymer and Materials Science Following gamma irradiation in air which causes bond scission and yields large concentrations of peroxy radicals, maximum oxidation and an increase in crystallinity occurs on the surface of ultrahigh molecular weight polyethylene. Here, bimolecular reactions of peroxy radicals generate carbonyls, mostly ketones. On the polymer surface, peroxy radicals continue to react over time periods of years to generate carbonyls and chain scission. Peroxy radicals in the interior of the polymer abstract hydrogens and form hydroperoxides, inducing chain reactions and a slow but continue increase of ketone. Within the polymer sample, to a decreasing depth with increasing dose, a reduced concentration of oxygen is available to react with radiolytic radicals, so that more efficient crosslinking and a low level of hydroperoxide chain reaction occur. After long periods of time a surface maximum in carbonyl concentration is produced. Heating polyethylene in high pressures of oxygen accelerates the oxidative process. © 1998 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 36: 329-339, 1998 0887-624X 0887624X Wiley-Blackwell |
| shingle_title_1 | Profile of oxidation in irradiated polyethylene |
| shingle_title_2 | Profile of oxidation in irradiated polyethylene |
| shingle_title_3 | Profile of oxidation in irradiated polyethylene |
| shingle_title_4 | Profile of oxidation in irradiated polyethylene |
| sigel_instance_filter | dkfz geomar wilbert ipn albert |
| source_archive | Wiley InterScience Backfile Collection 1832-2000 |
| timestamp | 2024-05-06T10:12:39.988Z |
| titel | Profile of oxidation in irradiated polyethylene |
| titel_suche | Profile of oxidation in irradiated polyethylene |
| topic | V |
| uid | nat_lic_papers_NLM164015450 |