Detail publikace

The Effect of Processing of Polycaprolactone Films on Degradation Process Initiated by Aspergillus Oryzae Lipase

HERMANOVÁ, S. OMELKOVÁ, J. VOBĚRKOVÁ, S. BÁLKOVÁ, R. RICHTERA, L. MRAVCOVÁ, L. JANČÁŘ, J.

Originální název

The Effect of Processing of Polycaprolactone Films on Degradation Process Initiated by Aspergillus Oryzae Lipase

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Poly(epsilon-caprolactone) (PCL) films with M-n = 18 kDa obtained by compression molding (CM) or solution casting (SC) were subjected to Aspergillus oryzae (AO) lipase action in a phosphate buffer at pH 7 at 37 degrees C. The appearance of randomly oriented cracks on the surface of incubated PCL films accompanied by a decrease of the weight-average molecular weight (M-w) by 10% was observed after 42 days. The increase of crystallinity and surface morphology pattern of PCL samples exposed to AO lipase action supported the fact that the degradation proceeded in the amorphous phase of the aged films. SC films were degraded faster, probably due to better accessibility of ester bonds in the amorphous phase of spherulites.

Klíčová slova

Aspergillus oryzae, CLSM, Degradation, DSC, Lipase, Polycaprolactone

Autoři

HERMANOVÁ, S.; OMELKOVÁ, J.; VOBĚRKOVÁ, S.; BÁLKOVÁ, R.; RICHTERA, L.; MRAVCOVÁ, L.; JANČÁŘ, J.

Rok RIV

2012

Vydáno

7. 8. 2012

Nakladatel

Taylor & Francis

ISSN

1023-666X

Periodikum

INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION

Ročník

17

Číslo

6

Stát

Spojené království Velké Británie a Severního Irska

Strany od

465

Strany do

475

Strany počet

11

URL

http://www.tandfonline.com/doi/abs/10.1080/1023666X.2012.696402

BibTex

@article{BUT93188,
  author="Soňa {Hermanová} and Jiřina {Omelková} and Stanislava {Voběrková} and Radka {Bálková} and Lukáš {Richtera} and Ludmila {Mravcová} and Josef {Jančář}",
  title="The Effect of Processing of Polycaprolactone Films on Degradation Process Initiated by Aspergillus Oryzae Lipase",
  journal="INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION",
  year="2012",
  volume="17",
  number="6",
  pages="465--475",
  doi="10.1080/1023666X.2012.696402",
  issn="1023-666X",
  url="http://www.tandfonline.com/doi/abs/10.1080/1023666X.2012.696402"
}