Effect of N-acylation on structure and properties of chitosan fibers (Record no. 44372)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 01752nam a2200277Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250625140626.0 |
| 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-10133 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT | |
| Title | Effect of N-acylation on structure and properties of chitosan fibers |
| 490 0# - SERIES STATEMENT | |
| Volume/sequential designation | Carbohydrate Polymers, 68(1), p.122-127, 2007 |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | This article described the physico-chemical transition of the chitosan fibers by N-acylation. N-Acyl chitosan fibers were prepared by a host-treatment of chitosan fibers with carboxylic anhydrides (e. q., acetic, propionic, butyric, hexanoic anhydride)in methanol at room temperature. N-Acyl chitosan fibers were analyzed by FT-IR, TGA, DSC, XRD and SEM. N-Acylation with longer hydrocarbon side chain resulted in a higher spatial organization of the chain to the long axis and showed lower moisture retention. The N-acyl chitosan fibers with short acyl chain exhibited gradually lower tensile strength. N-Hexanoyl chitosan fibers showed higher tensile strength than N-acetylated ones. The chemical structure of chitosan fibers was gradually altered from hydrated form (anti-parallel structure)to dehydrated form (parallel structure)with a treatment of carboxylic anhydrides. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | CHITOSAN FIBERS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | N-ACYLATION |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | N-ACYLCHITOSAN FIBERS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | CARBOXYLIC ANHYDRIDES |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | CHEMICAL STRUCTURE TRANSITION |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Choi, C.Y. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Kim, S.B. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Pak, P.K. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Yoo, D.I. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Chung, Y.S. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://drive.google.com/file/d/1Freyh4tLOSRwecWM2K3TtVkW9xzuhJRi/view?usp=drivesdk">https://drive.google.com/file/d/1Freyh4tLOSRwecWM2K3TtVkW9xzuhJRi/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-10133 | 25.06.2025 | 25.06.2025 | Documentos solicitados |