Determining conformational order and crystallinity in polycaprolactone via Raman spectroscopy (Record no. 54128)

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control field MX-MdCICY
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250625162441.0
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Transcribing agency CICY
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Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-20023
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245 10 - TITLE STATEMENT
Title Determining conformational order and crystallinity in polycaprolactone via Raman spectroscopy
490 0# - SERIES STATEMENT
Volume/sequential designation Polymer, 117, p.1-10, 2017
520 3# - SUMMARY, ETC.
Summary, etc. Raman spectroscopy is a popular method for non-invasive analysis of biomaterials containing polycaprolactone in applications such as tissue engineering and drug delivery. However there remain fundamental challenges in interpretation of such spectra in the context of existing dielectric spectroscopy and differential scanning calorimetry results in both the melt and semi-crystalline states. In this work, we develop a thermodynamically informed analysis method which utilizes basis spectra - ideal spectra of the polymer chain conformers comprising the measured Raman spectrum. In polycaprolactone we identify three basis spectra in the carbonyl region; measurement of their temperature dependence shows that one is linearly proportional to crystallinity, a second correlates with dipole-dipole interactions that are observed in dielectric spectroscopy and a third which correlates with amorphous chain behavior. For other spectral regions, e.g. C-COO stretch, a comparison of the basis spectra to those from density functional theory calculations in the all-trans configuration allows us to indicate whether sharp spectral peaks can be attributed to single chain modes in the all-trans state or to crystalline order. Our analysis method is general and should provide important insights to other polymeric materials.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element POLYCAPROLACTONE
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element RAMAN SPECTROSCOPY
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element CRYSTALLINITY
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Kotula, A. P.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Snyder, C. R.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Migler, K. B.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1pGW53yB9jcJtgo-_smjdOneMtBVDo2tm/view?usp=drivesdk">https://drive.google.com/file/d/1pGW53yB9jcJtgo-_smjdOneMtBVDo2tm/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-20023 25.06.2025 25.06.2025 Documentos solicitados