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STARCH Recent Advances In Biopolymer Science And Technology

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    SYSNO ASEP0358894
    Document TypeM - Monograph Chapter
    R&D Document TypeMonograph Chapter
    TitleStructure, mechanical properties and biodegradability of PCL/Starch blends
    Author(s) Šárka, E. (CZ)
    Synytsya, A. (CZ)
    Kruliš, Zdeněk (UMCH-V) RID, ORCID
    Kotek, Jiří (UMCH-V) RID
    Růžek, L. (CZ)
    Bubník, Z. (CZ)
    Růžková, M. (CZ)
    Source TitleSTARCH Recent Advances In Biopolymer Science And Technology. - Kraków : Polish Society of Food Technologists', 2010 / Fiedorowicz M. ; Bertoft E. - ISBN 978-83-932389-0-3
    Pagess. 131-143
    Number of pages13 s.
    Number of pages195
    Languageeng - English
    CountryPL - Poland
    Keywordspoly-(ε-caprolactone) (PCL) ; B-starch ; acetylated starch
    Subject RIVGM - Food Processing
    R&D ProjectsGA525/09/0607 GA ČR - Czech Science Foundation (CSF)
    CEZAV0Z40500505 - UMCH-V (2005-2011)
    AnnotationNative or pre-gelatinized wheat starches (A and B types) or acetylated derivatives or native starch with degree of substitution DS of 1.5÷2.3 (10, 20, and 40 % m/m) were blended with poly-(ε-caprolactone) (PCL). Structure of the prepared films was analysed by FT-IR spectroscopy in comparison with the initial polymers. The following mechanical characteristics of the prepared films were derived from the stress-strain curves: Young modulus, yield stress, tensile strength, and strain at break. Water absorption of PCL/starch (6O/4O) films was determined according to ISO 62. The films containing native and pregelatinized starch degraded in compost totally during 1-2 months. Acetylation of starch molecules in the blends reduced the degradation rate. Chemical changes in the compost used for film exposition were measured.
    WorkplaceInstitute of Macromolecular Chemistry
    ContactEva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358
    Year of Publishing2012
Number of the records: 1