Thermal analysis and structural characterization of chitinous exoskeleton from two marine invertebrates (Record no. 54338)

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fixed length control field 02064nam a2200301Ia 4500
003 - CONTROL NUMBER IDENTIFIER
control field MX-MdCICY
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250625162445.0
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-20238
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245 10 - TITLE STATEMENT
Title Thermal analysis and structural characterization of chitinous exoskeleton from two marine invertebrates
490 0# - SERIES STATEMENT
Volume/sequential designation Thermochimica Acta, 610, p.16-22, 2015
520 3# - SUMMARY, ETC.
Summary, etc. Thermomechanical and structural properties of two marine species exoskeletons, Antipathes caribbeana (black coral)and Limulus polyphemus (xiphosure), were studied using dynamic mechanical thermal analysis (DMTA), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). DMTA curves indicate the viscoelastic behavior and glass transition around 255 °C, black coral presented a second transition (175 °C)associated to the acetamide group attached to the ?-chitin chain. DSC measurements showed a endothermic peak around 100 °C, with enthalpies of 4.02 and 118.04 J/g, indicating strong differences between exoskeletons respect to their water holding capacity and strength water-polymer interaction. A comparative analysis involving DSC and X-ray diffraction showed that lower values ?H in xiphosure correspond to a material with a higher crystallinity (30), in contrast black coral exhibits higher values ?H and a lower crystallinity (19). FTIR confirmed ?-chitin based structure, at higher temperature diminishes the amide bands and a new one appears, related to C-N groups.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element BLACK CORAL
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element HORSESHOE CRAB
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element THERMAL PROPERTIES
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element DMTA
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element TGA
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element XRD
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Juárez-De La Rosa, B. A.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name May-Crespo, J.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Quintana-Owen, P.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Gónzalez-Gómez, W. S.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Yañez-Limón, J. M.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Alvarado-Gil, J. J.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1tXUJ37oPoNLKP2IcIXwTOjW7G8UVz-lh/view?usp=drivesdk">https://drive.google.com/file/d/1tXUJ37oPoNLKP2IcIXwTOjW7G8UVz-lh/view?usp=drivesdk</a>
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Source of classification or shelving scheme Clasificación local
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-20238 25.06.2025 25.06.2025 Documentos solicitados