Results 101 to 110 of about 15,728 (247)

Vinylation of Pentaerythritol

open access: yesNippon kagaku zassi, 1963
ペンタエリトリットを有機溶媒中で水酸化カリウムを用い,加圧アセチレンによってビニル化反応を行なう諸条件を検討した結果,溶媒としてはブタノール,触媒水酸化カリウムの量は溶媒に対して,約1.5%,反応温度は160℃がそれぞれ適当であることを知った。反応生成物中からmp49°~50℃の結晶を単離し,これがペンタエリトリットテトラビニルエーテルであることを確認したが,なお多くの分留困難にして未確認物質の同時に生成していることがわかった。
Yoshiro INOUYE, Kazuo KITAMURA
openaire   +2 more sources

synthesis of Functionalised derivatives of Pentaerythritol

open access: yesJournal of Chemical Research, 2003
The synthesis of functionalised derivatives of pentaerythritol has been attempted by the reaction of 1 with different aldehydes and nucleophilic reagents; the activity of various derivatives against hepatitis B virus has been studied.
E. S. H. El Ashry   +4 more
openaire   +1 more source

4D Printing of Multimaterial Flexible Magneto‐Active Polymers

open access: yesAdvanced Materials Technologies, Volume 11, Issue 9, 6 May 2026.
Magneto‐active polymers are 3D‐printed with tunable mechanical and magnetic properties using both superparamagnetic and hard ferromagnetic fillers. Nano‐CT imaging reveals the spatial distribution of particles within the matrix. Programmable magnetization patterns and soft, flexible architectures enable responsive actuation, offering exciting ...
Naji Tarabay   +6 more
wiley   +1 more source

Parameters controlling the advanced oxidation degradation kinetics of nitroglycerin and pentaerythritol tetranitrate

open access: yesGreen Processing and Synthesis, 2018
Several advanced oxidation processes have been performed for the decomposition of ester nitrates (ENs), such as nitroglycerine (NG) and pentaerythritol tetranitrate (PETN).
Khue Do Ngoc   +7 more
doaj   +1 more source

Development of a special purpose spacecraft interior coating, phase 3 [PDF]

open access: yes
A variety of intumescent coatings based on a fluorocarbon latex resin modified with either an acrylic resin or an epoxy resin were prepared. Several intumescent systems were used for these studies including some based on ammonium polyphosphate and others
Gillman, H. D., Nannelli, P.
core   +1 more source

Crystallization characteristic of pentaerythritol tetralaurate (PETD) [PDF]

open access: yes, 2006
Crystallization of pure Pentaerythritol Tetralaurate (PETD) can be done by using melt crystallization technique. PETD is important chemical used as an essential varnish additive in magnetic wire production and has high demand in Malaysia industry such as
Shahbudin, Sobki
core  

Nitroxide‐Mediated Photo‐Polymerization: A Swiss Army Knife for Microfluidic Design

open access: yesAdvanced Materials Technologies, Volume 11, Issue 9, 6 May 2026.
This article illustrates the application of NMP2 to the rapid (less than 1 h) photostructuring and sealing of model structures intended for microfluidic applications. Remarkably, the careful design of resin composition allows completing these steps by simply spreading bare monomer (i.e., no added photoinitiator) on top of the bottom layer embedding ...
Carlo Gonzato   +5 more
wiley   +1 more source

TUNG OIL BASED MONOMER FOR THERMOSETTING POLYMERS: SYNTHESIS, CHARACTERIZATION AND COPOLYMERIZATION WITH STYRENE

open access: yesBioResources, 2011
A tung oil (TO) based monomer for rigid thermosetting polymer was synthesized, characterized, and copolymerized with styrene in this study. Tung oil was alcoholyzed with pentaerythritol (PER) to get tung oil pentaerythritol alcoholysis products (TOPER ...
Chengguo Liu,   +6 more
doaj  

Catalytic Conversion of Lower Olefins to Aromatics Using Zeolite‐Based Catalysts

open access: yesChemCatChem, Volume 18, Issue 9, 14 May 2026.
Zeolite‐catalyzed upgrading of light olefins (C2–C4) into benzene, toluene, and xylenes (BTX) represents a sustainable route to aromatics. This review outlines thermodynamic and mechanistic aspects, the influence of acidity and textural properties of catalysts.
Paresh Butolia   +5 more
wiley   +1 more source

Toward Fully Biobased Polyesters With Spiroacetal Units: Synthesis and Enzymatic Depolymerization

open access: yesMacromolecular Materials and Engineering, Volume 311, Issue 5, May 2026.
A biobased spiroacetal‐containing dicarboxylate monomer derived from vanillin is developed as a sustainable alternative to dimethyl terephthalate. Copolyesters with tunable compositions are prepared, showing enhanced glass transition temperature, mechanical properties, and oxygen barrier performance.
Smita V. Mankar   +9 more
wiley   +1 more source

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