Results 21 to 30 of about 46,587 (96)

Hypercrosslinked Polymer Supported Sulfonic Acids For Esterification of Carboxylic Acids [PDF]

open access: yes
This work focused on the catalytic performance of hypercrosslinked sulfonic acid for esterification of carboxylic acids. The commercially available hyercrosslinked poly(styrene-divinylbenzine)sulfonic acids, Purolite D5081 and D5082 were found to be ...
Zhu, Qingyu
core   +3 more sources

White‐Light‐Mediated Imidazole Catalysis Toward Terpene‐Based Thermosets

open access: yesAngewandte Chemie, Volume 138, Issue 39, 21 September 2026.
White‐light irradiation enables the photoinitiator‐free curing of fully bio‐based terpene epoxy–anhydride systems. A light‐induced switch in epoxide ring‐opening selectivity leads to colorless, transparent thermosets with enhanced thermomechanical performance, revealing an unexpected pathway for sustainable terpene‐based network formation.
Chenxi Zhang   +3 more
wiley   +2 more sources

Chemically modified biolubricant basestocks from epoxidized oleic acid: Improved low temperature properties and oxidative stability

open access: yesJournal of Saudi Chemical Society, 2010
Synthetic biolubricant basestocks with improved low temperature and oxidative stability were prepared by chemical modification of epoxidized oleic acid (EOA).
Jumat Salimon, Nadia Salih, Emad Yousif
doaj   +1 more source

Catalytic and mechanistic studies into the epoxidation of styrenes using manganese complexes of structurally similar polyamine ligands [PDF]

open access: yes, 2014
Two structurally similar polyamine ligands (7 and 8) have been prepared, which differ only by the presence of either a secondary or tertiary nitrogen donor within their N5 donor set.
Watkinson, M   +11 more
core   +1 more source

Epoxidation and thermal study of vegetable oils in a calorimetric reactor [PDF]

open access: yes, 2022
In this work both calorimetric study as well as epoxidation reaction have been carried out using : soybean oil, sunflower oil and rapesedd oil. The main objective of this work is analyze the different behaviour of these oils and compare the results ...
Nocco, Emanuele
core  

Enabling Highly (R)-Enantioselective Epoxidation of Styrene by Engineering Unique Non-Natural P450 Peroxygenases [PDF]

open access: yes, 2020
Unlike the excellent (S)-enantioselective epoxidation of styrene performed by natural styrene monooxygenase (ee >99%), the (R)-enantioselective epoxidation of styrene has not yet achieved a comparable efficiency using natural or engineered oxidative ...
Zhiqi, Cong   +9 more
core   +1 more source

Heterogenisation of ketone catalysts within mesoporous supports for asymmetric epoxidation

open access: yes, 2013
The synthesis of the first mesoporous silica (150 Å) anchored carbohydrate-derived chiral ketone is described. This new heterogeneous catalyst has been shown to be effective in the asymmetric epoxidation of olefins by oxone.
Robert Raja   +5 more
core   +1 more source

Reorganization of Innate Immune Cell Lipid Profiles by Bioinspired Meroterpenoids to Limit Inflammation

open access: yesAdvanced Science, EarlyView.
Resolution pharmacology is an emerging strategy to tackle inflammatory pathologies. Bioinspired meroterpenoids induce a lipid mediator class switch toward inflammation resolution in vitro and in vivo by targeting key nodes in lipid mediator biosynthesis and neutral lipid dynamics.
Lorenz Waltl   +20 more
wiley   +1 more source

Leucaena Oil Functionalized With Osmium Tetroxide as a Precursor for Polyol‐Based Polyurethane

open access: yesJournal of Polymer Science, EarlyView.
Leucaena leucocephala seed oil is converted into a hydroxyl‐functional biopolyol through OsO4‐mediated dihydroxylation. The resulting biopolyol shows a hydroxyl number of 160–175 mg KOH g−1 and is successfully used to produce flexible, open‐cell polyurethane foams, highlighting a renewable route for converting underutilized biomass into value‐added ...
Giovanni Miraveti Carriello   +13 more
wiley   +1 more source

Development and Evaluation of Automotive Lubricating Oil from Jatropha curcas Oil

open access: yesInternational Journal of Emerging Research in Engineering, Science, and Management
A Jatropha curcas-based bio-lubricant was developed and evaluated for automotive applications through acid esterification, base-catalyzed transesterification, in-situ peracetic acid epoxidation, and multi-additive blending.
Isaac Nsor   +2 more
doaj   +1 more source

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