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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
Nafion® modified with primary amines: chemical structure, sorption properties and pervaporative separation of methanol-dimethyl carbonate mixtures
Original language description
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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10403 - Physical chemistry

Project
<a href="/en/project/GP13-32829P" target="_blank" >GP13-32829P: Separating azeotropes with the vapor permeation method</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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