Crosslinking of carboxymethyl cellulose by plasma treatment

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Crosslinking of carboxymethyl cellulose by plasma treatment

Popis výsledku v původním jazyce

Carboxymethyl cellulose (CMC) is a widely used hydrophylic polymer with an enormous potential in medical applications involving extremely high absorption of water, swelling, sensitivity to pH and temperature; for example, as wound dressing. Because of the polar carboxyl groups is CMC highly soluble. Crosslinking by plasma treatment operates on a similar principle as the radiation crosslinking, i.e. of formation of free radicals. Compared to chemical crosslinking plasma crosslinking is environmentally friendly. This study deals with the change of sorption properties of samples of modified CMC after crosslinking by plasma treatment. For the plasma treatment plasma was applied in the vacuum chamber. The effect of exposure time on the solubility of films was observed. The best process paramentres: discharged power = 250 W, plasma treatment time = 1-90 s. For comparison the experiment was carried out with atmospheric plasma as well.

Název v anglickém jazyce

Crosslinking of carboxymethyl cellulose by plasma treatment

Popis výsledku anglicky

Carboxymethyl cellulose (CMC) is a widely used hydrophylic polymer with an enormous potential in medical applications involving extremely high absorption of water, swelling, sensitivity to pH and temperature; for example, as wound dressing. Because of the polar carboxyl groups is CMC highly soluble. Crosslinking by plasma treatment operates on a similar principle as the radiation crosslinking, i.e. of formation of free radicals. Compared to chemical crosslinking plasma crosslinking is environmentally friendly. This study deals with the change of sorption properties of samples of modified CMC after crosslinking by plasma treatment. For the plasma treatment plasma was applied in the vacuum chamber. The effect of exposure time on the solubility of films was observed. The best process paramentres: discharged power = 250 W, plasma treatment time = 1-90 s. For comparison the experiment was carried out with atmospheric plasma as well.

Druh

O - Ostatní výsledky

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

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