Results 21 to 30 of about 18,682 (226)

Minyak Biji Nyamplung (Calophyllum inophyllum) Dengan Etanol

Indonesian Journal of Chemical Research, 2017
A study has been conducted on the transesterification of Calophyllum innophyllum seed oil with ethanol. The purpose of this research is to determine the comparison of concentration of phosphoric acid used to remove the gum on the oil, ester content is ...
Rezki Rezki, Rustam Musta, Aceng Haetami
doaj   +1 more source

ANALYSIS OF FREE FATTY ACID ON SOYBEAN OIL USING GAS CHROMATOGRAPHY – MASS SPECTROSCOPY

Indonesian Journal of Chemistry, 2010
Research on transesterification of soybean oil with sodium methoxide as the catalyst in methanol has been conducted. Yields of transesterification reaction were analyzed by gas chromatography-mass spectroscopy (GC-MS).
Deni Pranowo, M Muchalal
doaj   +1 more source

Noncanonical Peloruside A Biosynthesis by an Uncultivated Verrucomicrobiota Symbiont

Angewandte Chemie, EarlyView.
Noncanonical biochemistry of the peloruside PKS characterized in this work, comprising double bond generation by a noncanonical tridomain (blue), acetyl‐CoA recycling (orange), and proofreading systems (purple and yellow). The Z‐double bond is installed by TEB1 through O‐acetylation and acetate elimination. The acyl ligase PelB (AL, orange) selectively
Amy E. Fraley, Michael Rust, Moritz Wagner, Ida R. Hipfinger, Paul J. N. Böhm, Cora L. Dieterich, Christopher M. Field, Michael J. Page, Jeremy G. Owen, Robert A. Keyzers, Shinichi Sunagawa, Jörn Piel   +11 more
wiley   +2 more sources

Production optimisée de biodiesel à partir d’huiles de graines de Carapa procera et de Hura crepitans avec un catalyseur acide et basique dérivés de leurs coques

Revue Congolaise des Sciences et Technologies
La demande croissante en sources d’énergie renouvelable a suscité un intérêt pour la production de biodiesel à partir de matières premières non conventionnelles.
Michée Kazadi Mputu , Priscille Kwalul , Arsene Muabu, Ismael Mulumba , Arnold Mulula , Taba Kalulu, Théodore Kazadi, Kasuku Wanduwa, Joséphine Ntumba   +8 more
doaj   +1 more source

Recyclable Lignin‐Based Thermadapt Shape Memory Polymers With Near‐Infrared Light Response

Advanced Functional Materials, EarlyView.
ABSTRACT Covalent adaptable networks (CANs) have been designed to address the recycling challenges associated with thermosets, while preserving their mechanical properties. However, producing biobased CANs with intelligent response capabilities remains challenging.
Jian Liu, Yanfan Yang, Görkem Eylül Kaya, Huixing Cao, Joost Brancart, Niko Van den Brande, Lin Dai, Chuanling Si, Katrien V. Bernaerts   +8 more
wiley   +1 more source

Methanesulfonic Acid as a Dual‐Role Reagent for Porous Polymer Network Design

Advanced Materials, EarlyView.
The design of porous polymer networks (PPNs) using methanesulfonic acid (MSA) as a dual‐role reagent facilitates the synthesis of robust PPNs for specific applications. It also makes the scale‐up process techno‐economically feasible because MSA functions simultaneously as both a solvent and a catalyst for the reaction.
Kelechi Festus, Arnab Ghosh, Ankit Mondal, Theresa Ariri, Suman Mandal, Ahana Sarkar, Urme Podder, Qingsheng Wang, Hong‐Cai Zhou   +8 more
wiley   +1 more source

Transestérification éthanolique d'huile végétale dans des microréacteurs : transposition du batch au continu [PDF]

, 2011
La réaction de transestérification des huiles végétales avec de l'éthanol permet la production d’esters éthyliques dont les applications industrielles sont, à ce jour, essentiellement cosmétiques ou alimentaires. Pour ouvrir le champ des applications aux
Richard, Romain
core   +5 more sources

The synthesis of biodiesel from palm oil and waste cooking oil via electrolysis by various electrodes

Case Studies in Chemical and Environmental Engineering, 2023
The influence of various electrodes used in the synthesis of biodiesel from palm oil and waste cooking oil via electrolysis processes was studied. The results revealed that electro-catalysts introduced to the transesterification of palm oil and waste ...
Darwin, Muhammad Thifal, Muhammad Alwi, Zhairi Murizal, Atmadian Pratama, Muhammad Rizal   +5 more
doaj   +1 more source

Selective Chain Scission of L-Lactide/ε-Caprolactone Chain Shuttled Copolymers. [PDF]

ChemSusChem
L‐lactide/ε‐caprolactone chain shuttled multiblock copolymers are composed of PLLA‐rich hard blocks and poly(ε‐caprolactone‐co‐L‐lactide) soft blocks. They can be selectively degraded, notably into PLA oligomers, by organocatalyzed transesterification. This allows not only to determine the block length but also to envision the recycling of the PLA part
Noon A, Fichaux L, Mosca X, Lowy PA, Bousquet T, Pelinski L, Bonnet F, Ramalho JPP, Favrelle-Huret A, Zinck P.   +9 more
europepmc   +2 more sources

Two‐Way Shape Memory Polymer Composite Gripper for Adaptive Robotic Applications

Advanced Materials Technologies, EarlyView.
A two‐way shape memory polymer (SMP) composite is developed with intrinsic shape‐changing capability driven solely by temperature, eliminating external actuation loads. Embedding the SMP in a low‐stiffness elastomeric matrix enabled reversible transformations during heating and cooling cycles.
Aamna Hameed, Kamran Ahmed Khan
wiley   +1 more source