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

Kód výsledku v 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>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CC - Organická chemie

OECD FORD obor

—

Projekt

—

Návaznosti

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

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY

ISSN

0236-5731

e-ISSN

—

Svazek periodika

287

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

HU - Maďarsko

Počet stran výsledku

10

Strana od-do

—

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—