Results 181 to 190 of about 117,724 (349)

Method of manufacturing epoxy compound.

Method of manufacturing epoxy compound.
Disclosed is prepn. method of an epoxy compd., characterized by reaction of an olefin with hydrogen peroxide in the presence of a tungsten compd. and a nitrogen-contg. compd. (wherein, pKa of conjugate acid of the nitrogen-contg. comound is 1.5-11.5). For example, to a soln. of tetrahydroindene (THI; 1 mmol) in acetonitrile (5 mL) were added imidazole (
openaire  

Investigation of the effects of cobalt ions on epoxy properties [PDF]

The effects of Co(acac)sub x complexes on MY-720 epoxy properties have been investigated. It appears that Co2(+) ions form antibonding or nonbonding orbitals which increase the free volume and also reduce the cohesiveness of the host epoxy.
Singh, J. J., Stoakley, D. M.
core   +1 more source

Fully Biodegradable Poly (lactic acid)/Poly (butylene adipate-co-terephthalate) Blends with highly toughness Based on in situ Interfacial Compatibilization by functional epoxy compound [PDF]

Yunda Shen, Bo Jin, Liang Ren, Hao Gan, Jiankun Li, Dan Zhao, Huizhong Shen, Mingyao Zhang   +7 more
openalex   +1 more source

The Effect of the Salt Water Aging on the Mechanical Properties of Epoxy Adhesives Compounds [PDF]

, 2020
Anna Rudawská
openalex   +1 more source

Hydrogel‐Based Vat Photopolymerization of Ceramics and Metals with Low Shrinkages via Repeated Infusion Precipitation

Advanced Materials, EarlyView.
This work introduces an in situ precipitation strategy for the hydrogel‐based vat photopolymerization of architected ceramics and metals with reduced shrinkages and improved densities. Repeated infusion‐precipitation significantly increases metal loading within the hydrogels, which improves part quality after thermal conversion.
Yiming Ji, Ying Hong, Dhruv R. Bhandari, Daryl W. Yee   +3 more
wiley   +1 more source

Chemoselective Reduction of .ALPHA.,.BETA.-Epoxy Carbonyl Compounds to.BETA.-Hydroxy Carbonyl Compounds (Aldols and Their Analogues) by Organoseleniums and Its Application to Natural Product Synthesis.

, 1998
Toshio Suzuki, Masaaki Miyashita
openalex   +2 more sources

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

Enhancing predictability of thermal warpage by applying temperature-dependent Poisson's ratio of epoxy molding compound

, 2023
Junmo Kim, Myoung Song, Chang-Yeon Gu, Sungwoo Ma, Jinhee Lee, Woong-Sun Lee, Taek‐Soo Kim   +6 more
openalex   +1 more source

The Space Within: How Architected Voids Promote Tissue Formation

Advanced Materials, EarlyView.
This review explores the role of void spaces in tissue engineering scaffolds and examines four key methods for introducing porosity into hydrogels at different scales. It discusses sacrificial templating, microgels, phase separation, and 3D printing, highlighting principles, advantages, and limitations. It also addresses emerging strategies integrating
Anna Puiggalí‐Jou, Isabel B. Hui, Carla Fernandez‐Rico, Marcy Zenobi‐Wong   +3 more
wiley   +1 more source

Antifouling Epoxy Coatings with Scots Pine Bark Extracts. [PDF]

Molecules
Szmechtyk T, Efenberger-Szmechtyk M, Czyżowska A.   +2 more
europepmc   +1 more source