Study on the Microstructure of Polyester Polyurethane Irradiated in Air and Water

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10318085" target="_blank" >RIV/00216208:11320/15:10318085 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.3390/polym7091481" target="_blank" >http://dx.doi.org/10.3390/polym7091481</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/polym7091481" target="_blank" >10.3390/polym7091481</a>

Result language

angličtina

Original language name

Study on the Microstructure of Polyester Polyurethane Irradiated in Air and Water

Original language description

The gamma irradiation induced aging of thermoplastic polymer Estane 5703 in air and water environments was studied by small-angle neutron scattering (SANS), Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), and X-ray diffraction (XRD). The degree of phase mixing was increased after irradiation, accompanied by the increase of domain distance and decrease of domain size. The hard domain distance increased from 9.8 to 11.2 nm and 14.4 nm for the samples irradiated in airand water with a dose up to 500 kGy, respectively. The GPC results indicated progressive formation of larger linked structures with very high molar mass with increasing absorbed doses. The samples irradiated in water exhibited a stronger aging effect than those irradiated in air. The FTIR results suggested that the cross-linking occurred among the secondary alkyl radicals, and the interactions in hard domains weakened because of the loss of inter-urethane H-bonds. The volume fraction of

Czech name

—

Czech description

—

Type

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

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

—

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

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

Name of the periodical

Polymers

ISSN

2073-4360

e-ISSN

—

Volume of the periodical

7

Issue of the periodical within the volume

9

Country of publishing house

CH - SWITZERLAND

Number of pages

12

Pages from-to

1755-1766

UT code for WoS article

000362558000010

EID of the result in the Scopus database

2-s2.0-84946050229