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Structure and Morphology of Microbial Degraded Poly(epsilon-caprolactone)/Graphite Oxide Composite

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F14%3APU106040" target="_blank" >RIV/00216305:26620/14:PU106040 - isvavai.cz</a>

  • Result on the web

    <a href="https://link.springer.com/article/10.1007/s10924-013-0630-y" target="_blank" >https://link.springer.com/article/10.1007/s10924-013-0630-y</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/s10924-013-0630-y" target="_blank" >10.1007/s10924-013-0630-y</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Structure and Morphology of Microbial Degraded Poly(epsilon-caprolactone)/Graphite Oxide Composite

  • Original language description

    Biodegradation of poly(epsilon-caprolactone) composite with graphite oxide (GO) by the action of Bacillus subtilis (BS) was studied in this work. Nanocomposite produced in a form of thin film was exposed to nutrient cultivation medium with BS as well as to abiotic nutrient medium (control run) at 30 A degrees C. The matrix itself was exposed to the same conditions for comparison. Biodegradation was demonstrated by the weight loss and the decrease of molecular weight during 21 days of the experiment as well as by changes in the surface morphology and structure. Both degraded and control materials were characterized by confocal laser scanning microscopy, differential scanning calorimetry, thermogravimetry, and Fourier transform infrared spectroscopy with attenuated total reflectance. The bacterial growth expressed as the measure of the optical density/turbidity in McFarland units and pH of medium were measured in situ during the experiment. Lipolytic activity of BS was determined by spectrophotometric assay. Degradation process was accompanied by the increase of matrix crystallinity degree. GO served as nucleating agent and facilitated absorption of cultivation media into the composite which led to the increase of the crystallinity degree also for control nanocomposite specimens. It was not evaluated to be promoter of biodegradation. The surface cracks formation was initiated by BS action. Large surface cracks were formed on BS-degraded composite surfaces while surface erosion was more significant on BS-degraded matrix.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10404 - Polymer science

Result continuities

  • Project

    <a href="/en/project/ED1.1.00%2F02.0068" target="_blank" >ED1.1.00/02.0068: Central european institute of technology</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2014

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    JOURNAL OF POLYMERS AND THE ENVIRONMENT

  • ISSN

    1566-2543

  • e-ISSN

    1572-8900

  • Volume of the periodical

    22

  • Issue of the periodical within the volume

    2

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    10

  • Pages from-to

    190-199

  • UT code for WoS article

    000335728400005

  • EID of the result in the Scopus database

    2-s2.0-84900307957