Results 51 to 60 of about 2,759 (198)

Synthesis of trimethylolpropane trioleate by using stannous oxalate catalyst

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract This study was conducted to synthesize trimethylolpropane trioleate (TMPTO) using a stannous oxalate catalyst and investigate the dependence of the esterification rate on reaction variables. The highest esterification rate of approximately 99% was achieved at a 2.75:1 oleic acid/trimethylolpropane, 1.5% catalyst amount, 180°C reaction ...
Oguzhan Ilgen, Sumeyye Bilgic
wiley   +1 more source

Enzymatic Cross-Linking of Dynamic Thiol-Norbornene Click Hydrogels [PDF]

open access: yes, 2019
Enzyme-mediated in situ forming hydrogels are attractive for many biomedical applications because gelation afforded by enzymatic reactions can be readily controlled not only by tuning macromer compositions, but also by adjusting enzyme kinetics.
Hudson, Britney N.   +3 more
core   +2 more sources

Defect engineering for highly efficient and stable perovskite top cells for Si tandems

open access: yesBulletin of the Korean Chemical Society, EarlyView.
Defect passivation in wide‐bandgap perovskites is essential for enabling high‐efficiency and stable perovskite/Si tandem solar cells. Bulk, surface, and buried‐interface passivation strategies focus on suppressing nonradiative recombination, ion migration, and halide segregation, thereby clarifying critical design principles for next‐generation tandem ...
Ju Yeong Hong   +2 more
wiley   +1 more source

Thumba (Citrullus colocynthis L.) seed oil: a potential bio-lubricant base-stock

open access: yesGrasas y Aceites, 2015
Thumba seed oil, a minor, renewable tree borne oil, was exploited for the preparation of biolubricant base-stocks. The different base-stocks prepared were epoxy thumba oil (ETO), branched, 2-ethylhexyl ester (T2-EtHE), and polyol esters, namely ...
K. Kamalakar   +3 more
doaj   +1 more source

Synthesis of epoxidized palm oil-based trimethylolpropane ester by in situ epoxidation method [PDF]

open access: yes, 2012
Palm oil-based Trimethylolpropane ester (TMP ester), with an iodine value of 66.4 g/100g, was epoxidized to produce epoxidized TMP esters. In situ epoxidation method was used with peracetic acid to eliminate fatty acid double bonds in palm oil-based TMP ...
Mohd. Ghazi, Tinia Idaty   +3 more
core  

Multifunctional Design of Solid Polymer Electrolytes: Paving the Way for High‐Performance All‐Solid‐State Batteries

open access: yesCarbon Energy, EarlyView.
This review provides a comprehensive and systematic overview of the multifunctional design strategies for solid polymer electrolytes (SPEs), a pivotal component for enabling high‐performance all‐solid‐state batteries (ASSBs). It begins with a detailed classification of SPE systems and elaborates on their respective molecular design principles. The work
Bin Man   +11 more
wiley   +1 more source

Lubricant ester synthesis from rubber seeds waste using cockle shells as solid catalyst [PDF]

open access: yes, 2013
This paper presents the lubricant ester synthesis from rubber seeds waste using cockle shells as solid catalyst. Rubber seeds were chosen as raw materials in synthesizing lubricant because it is a type non-edible resource and this can avoid the problem ...
Ng, Wei Keong
core  

Dynamic characteristics and processing of fillers in polyurethane elastomers for vibration damping applications [PDF]

open access: yes, 2011
Polyurethane elastomers have the potential of being used to reduce vibrational noise in many engineering applications. The performance of the elastomer is directly related to matching the nature of the mechanical loss characteristics to the frequency and
A R Mackintosh   +5 more
core   +1 more source

Mechanical stability in flexible perovskite solar cells: Interface engineering and device design

open access: yesFlexMat, EarlyView.
Statistics of the improvement methods for f‐PSCs. Abstract Flexible perovskite solar cells (f‐PSCs) demonstrate significant potential for application in next‐generation wearable electronic devices and photovoltaic building integration due to their high power conversion efficiency and excellent power‐to‐weight ratio. However, the inherent brittleness of
Hong‐Yi Hou   +3 more
wiley   +1 more source

A novel sulfur‐containing photoinitiator based on benzophenone derivatives for rapid photopolymerization

open access: yesSmart Molecules, EarlyView.
This study develops a series of unimolecular photoinitiators, BP‐S1‐5, by incorporating hydrogen‐donating groups into a benzophenone framework. This method reduces the reliance on co‐initiators, and enables BP‐S1‐5 with efficient photoinitiation and excellent molding capability.
Yu Li   +11 more
wiley   +1 more source

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