Change search
ReferencesLink to record
Permanent link

Direct link
Sulfonated carbon as a new, reusable heterogeneous catalyst for one-pot synthesis of acetone soluble cellulose acetate
Show others and affiliations
2016 (English)In: RSC Advances, ISSN 2046-2069, E-ISSN 2046-2069, Vol. 6, no 11, 8829-8837 p.Article in journal (Refereed) PublishedText
Abstract [en]

A sulfonated carbon (SO3H/PhSO3H-carbon) catalyzed novel process was developed for the solvent free synthesis of acetone soluble-cellulose acetate (CA) via acetylation of cellulose with acetic anhydride. The SO3H/PhSO3H functionalized carbons easily outperformed the traditional solid acids (zeolites, heteropoly acids, Amberlyst-15 etc.) producing acetylated products with DS values between 1.6 and 2.94, in high yield (48-77% isolated yield) and under solvent free conditions, in a one-pot process. Further, it was possible to produce the commercially desired, soluble CA (DS values 2-2.7) in excellent yields ([similar]70%) from microcrystalline cellulose under optimized reaction conditions over the highly active mesoporous sulfonated catalyst (AC500S). A catalyst-to-cellulose (w/w) ratio of 1, acetic anhydride-to-AGU (anhydroglucose unit) mole ratio of 4.5 and reaction time of 12 h was applied. Additionally, the sulfonated catalyst could be easily recovered by centrifugal separation of the reaction mixture (diluted with acetone) and subsequently applied in the next reaction cycle with no significant reduction in yield and DS of CA over multiple reaction cycles.

Place, publisher, year, edition, pages
2016. Vol. 6, no 11, 8829-8837 p.
National Category
Chemical Sciences
URN: urn:nbn:se:umu:diva-114691DOI: 10.1039/C5RA25716FISI: 000369515900037OAI: diva2:897623
Available from: 2016-01-26 Created: 2016-01-26 Last updated: 2016-03-08Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Mikkola, Jyri-Pekka
By organisation
Department of Chemistry
In the same journal
RSC Advances
Chemical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 42 hits
ReferencesLink to record
Permanent link

Direct link