Biodegradation of polyether polyol based polyurethane elastomeric films influence of partial replacement of polyether polyol by biopolymers of renewable origin

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F11%3APU93034" target="_blank" >RIV/00216305:26310/11:PU93034 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Biodegradation of polyether polyol based polyurethane elastomeric films influence of partial replacement of polyether polyol by biopolymers of renewable origin

Original language description

In this work we investigated the degradation process of polyether polyol based polyurethane (PUR) elastomeric films in the presence of a mixed thermophilic culture as a model of a natural bacterial consortium. The presence of PUR material in cultivationmedium resulted in delayed but intensive growth of the bacterial culture. The unusually long lag phase was caused by the release of unreacted polyether polyol and tin catalyst from the material. The lag phase was significantly shortened and the biodegradability of PUR materials was enhanced by partial replacement (10%) of polyether polyol with biopolymers (carboxymethyl cellulose, hydroxyethyl cellulose, acetyl cellulose and actylated starch). The process of material degradation consisted of two steps.First, the materials were mechanically disrupted and, second, the bacterial culture was able to utilize abiotic degradation products, which resulted in supported bacterial growth. Direct utilization of PUR by the bacterial culture was obs

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EI - Biotechnology and bionics

OECD FORD branch

—

Project

—

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2011

Confidentiality

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

Name of the periodical

ENVIRONMENTAL TECHNOLOGY

ISSN

0959-3330

e-ISSN

—

Volume of the periodical

31

Issue of the periodical within the volume

9

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

1043-1052

UT code for WoS article

—

EID of the result in the Scopus database

—