MARC details
| 000 -LEADER |
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| fixed length control field |
02664nam a2200277Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20250625153912.0 |
| 040 ## - CATALOGING SOURCE |
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| Transcribing agency |
CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
B-12897 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
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| Title |
Temperature modulated DSC studies of melting and recrystallization in polymers exhibiting multiple endotherms |
| 490 0# - SERIES STATEMENT |
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| Volume/sequential designation |
Polymer, 41(3), p.1099-1108, 2000 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
Temperature-modulated DSC (TMDSC)is used to characterize melting and recrystallization in polymers exhibiting multiple melting endotherms. Poly(ethylene-2,6-naphthalenedicarboxylate)(PEN)and poly(oxy-1,4-phenyleneoxy-1,4-phenylenecarbonyl-1,4-phenylene)(PEEK)are chosen, and the data show the detailed contributions of thermal and processing histories to properties. The results are supplemented by standard DSC at different heating rates. By independent very rapid heating rate methods, the temperature at which the polymer first completely flows is used as a measure of the end of melting of crystals originally present in the sample, and is shown to be well below the final DSC melting point because of recrystallization during the DSC heating scan. This is true even for long annealing times at moderately high temperatures. The TMDSC signal detects endothermic peaks or shoulders corresponding to the melting of crystals originally present in the sample, and such information are not available from standard DSC because of offsetting exothermic and endothermic signals. The TMDSC data prove that the "low endotherm"-routinely detected by standard DSC a few degrees above isothermal annealing temperatures-is not a true "low endotherm", but is a superposition of early melting of secondary crystals with almost simultaneous exothermic recrystallization. It is not a distinct endotherm because the degree of recrystallization measured in the non-reversing signal of TMDSC increases continuously up to and sometimes through the final melting region. This description of the thermal scan considers both primary crystals, secondary crystals, and recrystallization during the heating scan. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
TEMPERATURE-MODULATED DSC (TMDSC) |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
POLY(ETHYLENE-2,6-NAPHTHALENEDICARBOXYLATE)(PEN) |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
POLY(OXY-1 |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
4-PHENYLENEOXY-1 |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
4-PHENYLENECARBONYL-1,4-PHENYLENE)(PEEK) |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Sauer, B.B. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Kampert, W.G. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Neal Blanchard, E. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Threefoot, S.A. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Hsiao, B.S. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/1FGIpeKooGq6SVKgixRtP2dSTuNemtVTJ/view?usp=drivesdk">https://drive.google.com/file/d/1FGIpeKooGq6SVKgixRtP2dSTuNemtVTJ/view?usp=drivesdk</a> |
| Public note |
Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Clasificación local |
| Koha item type |
Documentos solicitados |
