Nafion® modified with primary amines: chemical structure, sorption properties and pervaporative separation of methanol-dimethyl carbonate mixtures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F18%3A43913333" target="_blank" >RIV/60461373:22340/18:43913333 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0014305717317226" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0014305717317226</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.eurpolymj.2017.12.028" target="_blank" >10.1016/j.eurpolymj.2017.12.028</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nafion® modified with primary amines: chemical structure, sorption properties and pervaporative separation of methanol-dimethyl carbonate mixtures

Popis výsledku v původním jazyce

Nafion®, a highly hydrophilic polymer, is potentially usable for water - organic and hydrophilic organic - hydrophobic organic membrane separations. Since Nafion has accessible sulfo groups in its structure, we propose modifying it with primary amines and did so with aniline, benzylamine and ethanolamine. The resulting modifications contained ionic and sulfonamide bonds, as these were detected using Fourier transform infrared (FTIR) spectrometry. To quantify the separation characteristics of the amine-modified Nafion membranes, vapour sorption microgravimetry and pervaporation experiments were made. The vapour sorption tests showed that amine-modified Nafions sorb ca. 2–4 times less methanol, water and dimethyl carbonate vapours than pure Nafion. Importantly, pervaporation experiments made with methanol-dimethyl carbonate mixtures showed that Nafion modified with ethanolamine is approximately twice as selective to methanol as pure Nafion, the sodium salt of Nafion and Nafion modified with benzylamine.

Název v anglickém jazyce

Nafion® modified with primary amines: chemical structure, sorption properties and pervaporative separation of methanol-dimethyl carbonate mixtures

Popis výsledku anglicky

Nafion®, a highly hydrophilic polymer, is potentially usable for water - organic and hydrophilic organic - hydrophobic organic membrane separations. Since Nafion has accessible sulfo groups in its structure, we propose modifying it with primary amines and did so with aniline, benzylamine and ethanolamine. The resulting modifications contained ionic and sulfonamide bonds, as these were detected using Fourier transform infrared (FTIR) spectrometry. To quantify the separation characteristics of the amine-modified Nafion membranes, vapour sorption microgravimetry and pervaporation experiments were made. The vapour sorption tests showed that amine-modified Nafions sorb ca. 2–4 times less methanol, water and dimethyl carbonate vapours than pure Nafion. Importantly, pervaporation experiments made with methanol-dimethyl carbonate mixtures showed that Nafion modified with ethanolamine is approximately twice as selective to methanol as pure Nafion, the sodium salt of Nafion and Nafion modified with benzylamine.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/GP13-32829P" target="_blank" >GP13-32829P: Dělení azeotropických směsí metodou permeace par</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

European Polymer Journal

ISSN

0014-3057

e-ISSN

—

Svazek periodika

99

Číslo periodika v rámci svazku

99

Stát vydavatele periodika

IE - Irsko

Počet stran výsledku

9

Strana od-do

"268–276"

Kód UT WoS článku

000427338100029

EID výsledku v databázi Scopus

2-s2.0-85039805437