Resistance of polyvinyl alcohol blends stabilized by sodium and ammonium salts of lignite humic acids against gamma-irradiation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F11%3APU91013" target="_blank" >RIV/00216305:26310/11:PU91013 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Resistance of polyvinyl alcohol blends stabilized by sodium and ammonium salts of lignite humic acids against gamma-irradiation

Original language description

The dried blends containing sodium and ammonium salts of lignite humic acids (humates 0.5-10 % w/w) in polyvinyl alcohol (PVA) were exposed to high dosage of c-irradiation in the range of doses 127-806 kGy. Resulted products were then tested for their stability using thermogravimetrical analysis. As a reference the nontreated blends were used since the pure PVA exposed to gamma-irradiation very quickly lost its stability and resulting consistence did not allow the stability tests. Stabilities showed a strong concentration and counterion dependency. While sodium counterion caused mostly destabilization with increasing dose, the ammonium counterion acted in an opposite way. The tests carried out in a moisturizing container revealed the changes in water absorbing capacity of irradiated samples and allowed partial explanation of humate stabilizing effect. Generally, at lower concentration of a humate the increase was observed with an increase in the c-irradiation dose and vice versa. The r

Czech name

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Czech description

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Type

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

CEP classification

CC - Organic chemistry

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2011

Confidentiality

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

Name of the periodical

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY

ISSN

0236-5731

e-ISSN

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Volume of the periodical

287

Issue of the periodical within the volume

2

Country of publishing house

HU - HUNGARY

Number of pages

10

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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