Počet záznamů: 1
Influence of the Functionalization Degree of Acidic Ion-Exchange Resins on Ethyl Octyl Ether Formation
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SYSNO ASEP 0427023 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Influence of the Functionalization Degree of Acidic Ion-Exchange Resins on Ethyl Octyl Ether Formation Tvůrce(i) Guilera, J. (ES)
Hanková, Libuše (UCHP-M) RID
Jeřábek, Karel (UCHP-M) RID, ORCID, SAI
Ramírez, E. (ES)
Tejero, J. (ES)Zdroj.dok. Reactive and Functional Polymers. - : Elsevier - ISSN 1381-5148
Roč. 78, MAY (2014), s. 14-22Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova acidic ion-exchange resin ; sulfonation degree ; ISEC Vědní obor RIV CC - Organická chemie Institucionální podpora UCHP-M - RVO:67985858 UT WOS 000335274400003 DOI 10.1016/j.reactfunctpolym.2014.02.007 Anotace Ethyl octyl ether (EOE) can be obtained by the ethylation of 1-octanol by means of ethanol or diethyl carbonate over acidic ion-exchange resins. However, EOE formation has to compete with the less steric demanding formation of diethyl ether, by-product obtained from ethanol dehydration or diethyl carbonate decomposition. In the present work, the influence of the resin functionalization degree on EOE formation has been evaluated. A series of partially sulfonated resins were prepared by the sulfonation of a macroreticular styrene–divinylbenzene copolymer. The catalysts were tested in a batch reactor and compared with commercial ion exchanger catalysts. Amberlyst 15 and 46. The tests revealed that EOE formation occurred mainly in the firstly sulfonated domain of the polymer skeleton, the least crosslinked; while diethyl ether was formed in the whole polymer bead. Accordingly, the functionalization of the least accessible polymer domain, as a result of increasing the sulfonation temperature or by using a pre-swelling solvent, is not suitable to produce long chain ethers such as EOE, which apre preferred as diesel fuels. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2015
Počet záznamů: 1