Motion in polyethylene. II. Vibrations in crystalline polyethylene (Record no. 52957)
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| fixed length control field | 01626nam a2200169Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250625162419.0 |
| 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-18811 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT | |
| Title | Motion in polyethylene. II. Vibrations in crystalline polyethylene |
| 490 0# - SERIES STATEMENT | |
| Volume/sequential designation | The Journal of Chemical Physics, 37(6), p.1207-1216, 1962 |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | Using the specific heats of completely crystalline polyethylene as a basis, the vibrational spectrum is discussed. The vibrational spectrum is found to consist of three completely separate parts. (A)The high?frequency CH2?stretching vibrations between 2850 and 2930 cm-1 which contribute little to the specific heat below 350°K. (B)The low?frequency optical vibrations between 720 and 1480 cm-1 which contribute above 150°K increasingly to the specific heat. (C)The acoustical vibrations which stretch from zero to approximately 500 cm-1 and are at 260°K to 90 percent excited. A and B are adequately known from infrared and Raman experiments. C can be approximated by a Tarasov?type treatment leading to ? temperatures of 123° and 540° for the three?dimensional and one?dimensional parts, respectively. More detailed spectra are discussed, and a semiempirical best fit is given. The one-dimensional Debye function necessary for this discussion has been computed to five places and is tabulated in steps of hv/kT=0.01. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Wunderlich, B. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://drive.google.com/file/d/1wxw2PHs_ujDPxOagWE4uQ7iW_dfmaMl8/view?usp=drivesdk">https://drive.google.com/file/d/1wxw2PHs_ujDPxOagWE4uQ7iW_dfmaMl8/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 |
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| Clasificación local | Ref1 | CICY | CICY | Documento préstamo interbibliotecario | 25.06.2025 | B-18811 | 25.06.2025 | 25.06.2025 | Documentos solicitados |