Results 71 to 80 of about 42,970 (286)

Cyclic Processability of Functional Liquid Crystalline Epoxy Networks via Dynamic Ester Bonding

Journal of Applied Polymer Science, EarlyView.
This work reports the successful reprocessing of liquid crystal epoxy networks through two distinct modes—welding of clean breaks and reconstitution from shredded material—without significant loss of functionality. Thermal and mechanical characterization shows stability in the shape memory behavior and glass transition temperature over multiple ...
Collin Pekol, Mohammad Husein, David J. Keffer, David P. Harper   +3 more
wiley   +1 more source

Lipase-Catalyzed Synthesis of Medium-Long-Medium-Type of Structured Lipids from Refined Bleached Deodorized Olein

Applied Food Biotechnology, 2020
Background and objective: Medium-long-medium type of structured lipid is appropriate for the management of obesity, fat malabsorption and other metabolic disorders.
Qabul Dinanta Utama, Azis Boing Sitanggang, Dede Robiatul Adawiyah, Purwiyatno Hariyadi   +3 more
doaj   +1 more source

Diol Chain‐Length Effects in Adipate and Succinate Polyesters for Thermoplastic Polyurethanes

Journal of Applied Polymer Science, EarlyView.
This study examines 20 aliphatic polyesters as soft segments for thermoplastic polyurethanes (TPU), synthesized from adipic or succinic acid and diols (C2, C3, C4, C5, and C6). A pronounced odd‐even effect shows that even diols crystallize, while odd diols remain amorphous.
Dario Brand, Stephanie Duettmann, Kevin Marschner, Apolline Limouzin, Brigitte Voit   +4 more
wiley   +1 more source

Tuning Acetal and Disulfide Network Dynamics in Dynamic Diamine‐Cured Partially Bio‐Epoxy Networks

Journal of Applied Polymer Science, EarlyView.
This study investigates the development of high‐performance, sustainable vitrimers by balancing partially bio‐based epoxy resins with dynamic hardener chemistry. The research identifies how resin architecture and specific curing agents influence thermal stability, bond‐exchange kinetics, and environmental durability.
Marko Barbaric, Markus Wolfahrt, Christine Bandl, Sandra Schlögl   +3 more
wiley   +1 more source

Transesterification/acylation reactions catalyzed by molecular catalysts

, 2004
A survey of catalysts able to mediate the transesterification/acylation reaction is presented. Metal and organic catalysts are capable of facilitating this important transformation.
Nolan, Steven Patrick, Singh, R, Grasa, GA, Grasa, G A, Nolan, Steven   +4 more
core   +1 more source

Optimization of acid‐catalyzed transesterification of oil derived from mango processing seed waste: a step towards the circular economy

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Energy is the basis for socio‐economic development. The effects of fossil‐based energy sources underscore the urgent need for renewable and cost‐effective alternatives. Biofuels derived from non‐edible and low‐cost feedstocks are a promising alternative.
Getachew D. Gebre, Shemelis N. Gebremariam, Yadessa G. Keneni, Jorge M. Marchetti   +3 more
wiley   +1 more source

KINETICS OF PALM OIL TRANSESTERIFICATION IN METHANOL WITH POTASSIUM HYDROXIDE AS A CATALYST

Indonesian Journal of Chemistry, 2010
A study on palm oil transesterification to evaluate the effect of some parameters in the reaction on the reaction kinetics has been carried out. Transesterification was started by preparing potassium methoxide from potassium hydroxide and methanol and ...
Yoeswono Yoeswono, Triyono Triyono, Iqmal Tahir   +2 more
doaj   +1 more source

Development and evaluation of a microwave‐assisted continuous system for olive pomace oil extraction and in‐line esterification/transesterification

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract This study developed and evaluated a preliminary continuous microwave‐assisted system integrating oil extraction from olive pomace and subsequent conversion into fatty acid ethyl esters (FAEEs) in a single processing unit. A conventional microwave oven was adapted for continuous operation by incorporating magnetron power adjustment and a ...
Luís F. Barth, João H. C. Wancura, Rafael C. Beltrame, Flávio D. Mayer   +3 more
wiley   +1 more source

Environmental and economic sustainability assessment of biofuels from valorising spent coffee grounds

Cleaner Environmental Systems
This study quantifies and compares the life cycle environmental and economic sustainability of five most common and widely researched valorisation routes for spent coffee grounds (SCGs): i) fuel pelletizing; ii) combination of transesterification and ...
Piya Gosalvitr, Rosa M. Cuéllar-Franca, Robin Smith, Adisa Azapagic   +3 more
doaj   +1 more source

Functional Diversity and Oleaginous Potential of Fungal Strains From Hawaiian Soil Ecosystems

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Fungi represent an important but underexplored resource for microbial lipid production, including nutritionally valuable polyunsaturated fatty acids. Hawaiian soils, shaped by volcanic parent materials and strong environmental gradients, provide a unique setting for discovering functionally diverse fungal strains with distinct metabolic traits.
Yu Wang, Adam Phelps, Zhiqing Fang, Qian Li, Ty Shitanaka, Taren Bouwman, Luke H. Amerine, Abigail Rohy, Kyla Mei A. Tuazon, Zhiyue Wang, Samir Kumar Khanal, Nhu Nguyen, Zhi‐Yan Du   +12 more
wiley   +1 more source