Degradation of medical-grade polyurethane elastomers: The effect of hydrogen peroxide in vitro (Record no. 50247)
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| fixed length control field | 01894nam a2200277Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250625160144.0 |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) | |
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) | B-16072 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT | |
| Title | Degradation of medical-grade polyurethane elastomers: The effect of hydrogen peroxide in vitro |
| 490 0# - SERIES STATEMENT | |
| Volume/sequential designation | Journal of Biomedical Materials Research, 27(3), p.345-356, 1993 |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | Treatment of Pellethane 2363-80A - a medical-grade poly(tetramethylene oxide)-based polyurethane elastomer - with 25 percent (w/w)hydrogen peroxide at 100°C for times ranging from 24 h to 336 h led to significant decreases in ultimate tensile properties and decreases in molecular weight, both at the surface and in the bulk. IR spectral changes were similar to those observed after degradation in vivo. Differential scanning calorimetry showed that hydrogen-peroxide-induced degradation was associated with greater order in the hard domain and greater mobility in the soft domain. Studies conducted with low-molecular-weight model compounds for the hard and soft segments confirmed that methylene groups adjacent to oxygen were susceptible toward oxidation. The extent of degradation of a series of commercial polyurethanes on treatment with hydrogen peroxide (25 percent, 24 h, 100°C)correlated well with their reported susceptibility to environmental stress cracking in vivo. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | BIOMEDICAL EQUIPMENT |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | ELASTOMERS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | HYDROGEN PEROXIDE |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Meijs, G.F. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Mccarthy, S.J. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Rizzardo, E. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Chen, Y.-C. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Chatelier, R.C. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Brandwood, A. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Schindhelm, K. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://drive.google.com/file/d/1JT7UPbN6M0kDu9f75x10uWKcdsN6cMEJ/view?usp=drivesdk">https://drive.google.com/file/d/1JT7UPbN6M0kDu9f75x10uWKcdsN6cMEJ/view?usp=drivesdk</a> |
| Public note | Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Clasificación local |
| Koha item type | Documentos solicitados |
| Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clasificación local | Ref1 | CICY | CICY | Documento préstamo interbibliotecario | 25.06.2025 | B-16072 | 25.06.2025 | 25.06.2025 | Documentos solicitados |