Gas transport properties of polyacrylate/clay nanocomposites prepared via emulsion polymerization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F10%3A00348578" target="_blank" >RIV/61389013:_____/10:00348578 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Gas transport properties of polyacrylate/clay nanocomposites prepared via emulsion polymerization

Popis výsledku v původním jazyce

Poly(n-butyl methacrylate)/clay and poly(n-butyl methacrylate-co-methyl methacrylate)/clay nanocomposites were synthesized via emulsion polymerization to act as barrier membranes. Cloisite Na+ was modified via ion exchange to tether acryloxy reactive groups on the surface of the silicate platelet in order to promote polymerization and exfoliation of the stacked platelets. The addition of organically modified clays in the matrix improved the thermal and barrier properties of the nanocomposite. Results indicate that the polymer particle size in the emulsion dictated the dispersion of the montmorillonite clay platelets in the polymer matrix and the subsequent barrier properties of the membranes. Membranes fabricated utilizing emulsions with polymer particle sizes down to 120 nm gave rise to the highest barrier properties. The presence of 5 wt.% clays decreased gas permeability by up to 85% in certain copolymer systems compared to the pristine polymer.

Název v anglickém jazyce

Gas transport properties of polyacrylate/clay nanocomposites prepared via emulsion polymerization

Popis výsledku anglicky

Poly(n-butyl methacrylate)/clay and poly(n-butyl methacrylate-co-methyl methacrylate)/clay nanocomposites were synthesized via emulsion polymerization to act as barrier membranes. Cloisite Na+ was modified via ion exchange to tether acryloxy reactive groups on the surface of the silicate platelet in order to promote polymerization and exfoliation of the stacked platelets. The addition of organically modified clays in the matrix improved the thermal and barrier properties of the nanocomposite. Results indicate that the polymer particle size in the emulsion dictated the dispersion of the montmorillonite clay platelets in the polymer matrix and the subsequent barrier properties of the membranes. Membranes fabricated utilizing emulsions with polymer particle sizes down to 120 nm gave rise to the highest barrier properties. The presence of 5 wt.% clays decreased gas permeability by up to 85% in certain copolymer systems compared to the pristine polymer.

Druh

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

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

—

Projekt

<a href="/cs/project/ME09058" target="_blank" >ME09058: Příprava a charakterizace hybridních organicko-anorganických nanokompozitů</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Journal of Membrane Science

ISSN

0376-7388

e-ISSN

—

Svazek periodika

363

Číslo periodika v rámci svazku

1/2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

—

Kód UT WoS článku

000282794100004

EID výsledku v databázi Scopus

—