MARC details
| 000 -LEADER |
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| fixed length control field |
02114nam a2200289Ia 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 |
20250625124705.0 |
| 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-7641 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
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| Title |
Polyisophthalamides with Heteroaromatic Pendent Rings: Synthesis, Physical Properties, and Water Uptake |
| 490 0# - SERIES STATEMENT |
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| Volume/sequential designation |
Journal of Polymer Science: Part A: Polymer Chemistry, 43(21), p.5300-5311, 2005 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
A set of novel aromatic polyamides containing pyridine pendent groups was prepared from aromatic diamines and new monomers that are 5-substituted derivatives of isophthalic acid bearing nicotinamide, isonicotinamide, or picolinamide groups. The polymers were obtained in high yield and high molecular weight by the phosphorylation method of polycondensation. They were characterized by spectroscopic and chromatographic methods and several of their properties were investigated. All of the polymers were soluble in polar aprotic solvents and gave films of good mechanical properties. Glass transition temperatures were higher than that of the reference polymer, poly(m-phenyleneisophthalamide)(IP-MPD), while the thermal resistance, defined by the initial decomposition temperature observed by thermogravimetry, was in the range 370-420 8C, lower by 30-70 8C than that of IP-MPD. The presence of a pendent pyridine group and an additional amide side group per repeat unit made the polymers essentially amorphous and greatly improved their abilities to absorb water in comparison with nonsubstituted polyamides. Water uptake values up to 15 |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
COMPUTER MODELING |
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MONOMERS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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POLYAMIDES |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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STRUCTURE-PROPERTY RELATIONS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
SYNTHESIS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
THERMAL PROPERTIES |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
WATER UPTAKE |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Ferreiro, J.J. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
De La Campa, J.G. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Lozano, A.E. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
De Abajo, J. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/1LpZ928E8zTTVm8BFTxOEDriJpFAHsV7_/view?usp=drivesdk">https://drive.google.com/file/d/1LpZ928E8zTTVm8BFTxOEDriJpFAHsV7_/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 |
