Porous Scaffolds from High Molecular Weight Polyesters Synthesized via Enzyme-Catalyzed Ring-Opening Polymerization (Record no. 45330)

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control field 20250625140644.0
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Transcribing agency CICY
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Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-11103
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Title Porous Scaffolds from High Molecular Weight Polyesters Synthesized via Enzyme-Catalyzed Ring-Opening Polymerization
490 0# - SERIES STATEMENT
Volume/sequential designation BioMacromolecules, 7(9), p.2531-2538, 2006
520 3# - SUMMARY, ETC.
Summary, etc. Several aliphatic polyesters have been synthesized until now using enzyme-catalyzed ring-opening polymerization (ROP)of different lactones, although their molecular weight, hence mechanical strength, was not sufficient enough to fabricate porous scaffolds from them. To achieve this target, 1,5-dioxepan-2-one (DXO)and ¤-caprolactone (CL)were polymerized in bulk with Lipase CA as catalyst at 60 °C, and porous scaffolds were prepared from the polymers obtained thereof using a salt leaching technique. The CL/DXO molar feed ratio was varied from 1.5 to 10, and the reactivity ratios of CL and DXO were determined using the Kelen-Tudos method under such conditions of polymerization. NMR results showed a slightly lower CL/DXO molar ratio in the copolymers than in the feed due to high reactivity of DXO toward Lipase CA catalysis. The crystallinity of the PCL segment of the copolymers was affected by the presence of soft and amorphous DXO domains. The copolymers having high CL content were thermally more stable. The porosity of the scaffolds was in the range 82-88
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Srivastava, R.K.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Albertsson, A.C.
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Uniform Resource Identifier <a href="https://drive.google.com/file/d/10JF4vrQlMxM_5WBgCyfy7b1avoJ_yNy_/view?usp=drivesdk">https://drive.google.com/file/d/10JF4vrQlMxM_5WBgCyfy7b1avoJ_yNy_/view?usp=drivesdk</a>
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-11103 25.06.2025 25.06.2025 Documentos solicitados