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396 Newest Publications about the topic vinyl acetate

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Assessment and Application of Density Functional Theory for the Prediction of Structure and Reactivity of Vanadium Complexes

24-Jul-2015 | Brendan J. H. Sheppard; Michael P. Shaver; Jason K. Pearson, Journal of Physical Chemistry A, 2015

We assess the performance of six density functionals, each paired with one of five basis sets (a total of 30 model chemistries) for the prediction of geometrical parameters in the coordination sphere of nine vanadium complexes (for a total of 270 structural analyses). We find that results are ...

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Evaluation of conversion during the synthesis of aluminum (III) methacrylate-based copolymers using Raman spectroscopy and multivariate curve resolution

20-Jul-2015 | Author(s): Gabriella R. Ferreira, Frederico L.F. Soares, Renato L. Carneiro, Alexandre P. Umpierre, Fabricio ..., Microchemical Journal, 2015

Publication date: November 2015 Source:Microchemical Journal, Volume 123 Author(s): Gabriella R. Ferreira, Frederico L.F. Soares, Renato L. Carneiro, Alexandre P. Umpierre, Fabricio Machado The present work addresses the use of Raman spectroscopy and multivariate curve ...

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Ethylene vinyl acetate copolymer nanocomposites based on (un)modified sepiolite: Flame retardancy, thermal, and mechanical properties

16-Jul-2015 | Hossein Cheraghi Bidsorkhi, Hossein Adelnia, Nafiseh Naderi, Nima Moazeni, Zurina Mohamad, Polymer Composites, 2015

Flame retardant ethylene‐vinyl acetate (EVA) nanocomposites were prepared by melt blending using unmodified and modified sepiolite. Modification process of sepiolite was carried out by using 3‐aminopropyltrimethoxysilane in water/ethanol medium. Thermal, mechanical, and flame retardancy ...

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Study on viscoelastic, crystallization, and mechanical properties of HDPE/EVA/Mg(OH)2 composites

14-Jul-2015 | Yonghong Ma, Fei Qi, Man Chen, Xiaolang Chen, Jun Qin, Mengqi Tang, Polymer Composites, 2015

In this article, elastomer‐toughened high density polyethylene/magnesium hydroxide (HDPE/MH) composites with various contents of ethylene vinyl acetate copolymer (EVA) are prepared in a twin‐screw extruder and then injection‐molded. The effect of EVA on the viscoelastic, crystallization, ...

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Supramolecularly Regulated Ligands for Asymmetric Hydroformylations and Hydrogenations

26-Jun-2015 | Anton Vidal‐Ferran, Ignasi Mon, Antonio Bauzá, Antonio Frontera, Laura Rovira, Chemistry - A European Journal, 2015

Abstract Herein we report the use of polyether binders as regulation agents (RAs) to enhance the enantioselectivity of rhodium‐catalyzed transformations. For reactions of diverse substrates mediated by rhodium complexes of the α,ω‐bisphosphite‐polyether ligands 1–5,a–d, the enantiomeric excess ...

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Semicontinuous Emulsion Copolymerization of Vinyl acetate and Butyl acrylate with Nonionic Surfactants (Triton X Series)

25-Jun-2015 | Gülsüm Karacetin, Ayfer Sarac, Macromolecular Symposia, 2015

Summary In this study, the copolymerization of vinyl acetate (VAc) and butyl acrylate (BuA) in water semicontinuous emulsions made with the nonionic surfactants, Triton Xs, was studied as a function number of ethylene oxide (EO, X) and their concentrations. The copolymerization of VAc and BuA ...

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Acetoxy-Substituted Cyclopropane Dicarbonyls as Stable Donor–Acceptor–Acceptor Cyclopropanes

25-Jun-2015 | Yahaira Reyes; Keith T. Mead, Synthesis, 2015

SynthesisDOI: 10.1055/s-0034-1379934 A study of cyclopropanations of oxy-substituted ethenes with ethyl α-aroyl-α-diazoacetates is described. The reaction of ethyl α-aroyl-α-diazoacetates with trimethylsilyl vinyl ether or ethyl vinyl ether gave dihydrofuran products, but when vinyl acetate was ...

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Polyamide4‐block‐poly(vinyl acetate) via a polyamide4 azo macromolecular initiator: Thermal and mechanical behavior, biodegradation, and morphology

22-Jun-2015 | Norioki Kawasaki, Naoko Yamano, Atsuyoshi Nakayama, Journal of Applied Polymer Science, 2015

ABSTRACT A series of polyamide4‐block‐poly(vinyl acetate)s were synthesized by the radical polymerization of vinyl acetate (VAc) using an azo macromolecular initiator composed of polyamide4 (PA4). The block copolymers were investigated by examining their molecular weight, structure, thermal ...

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Synthesis of spherical core‐shell poly(vinyl acetate)/poly(vinyl alcohol) particles for use in vascular embolization: Study of morphological and molecular modifications during shell formation

22-Jun-2015 | Marco Oliveira, Leilane Carla Matos Cirilo, Márcio Nele, José Carlos Pinto, Polymer Engineering and Science, 2015

Transarterial vascular embolization and chemoembolization has become common medical procedures, where partially hydrolyzed poly(vinyl alcohol) (PVA) beads remains as one of the most used embolic agent materials. Although synthetic, PVA cannot be synthesized by direct polymerization and must be ...

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Effect of electron beam irradiation on (waste tire dust)‐filled ethylene vinyl acetate in the presence of bisphenol a diglycidyl ether

20-Jun-2015 | Feven Mattews Michael, Mohammad Khalid, Chantara Thevy Ratnam, Rashmi Walvekar, Suganti Ramarad, Syuhada Ramli, Journal of Vinyl and Additive Technology, 2015

The effect of bisphenol A diglycidyl ether (BADGE) and electron beam (EB) irradiation on the properties of waste tire dust (WTD) ‐filled ethylene vinyl acetate (EVA) has been studied. The EVA/WTD ratio was fixed to 80:20, whereas the BADGE concentration varied from 1 to 5 wt%. The samples were ...

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