Results 11 to 20 of about 115,294 (351)

The Effects of Reaction Variables on Solution Polymerization of Vinyl Acetate and Molecular Weight of Poly(vinyl alcohol) Using Taguchi Experimental Design [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2009
Poly(vinyl acetate) is synthesized via solution polymerization, and then it is converted to poly(vinyl alcohol) by alkaline alcoholysis. The aim of the work study was to investigate statistically the  influence of reaction variables in vinyl acetate ...
M.H. Navarchian, S. Mousazadeh
doaj   +1 more source

Mechanical and Microstructural Properties of Redispersible Polymer-Gypsum Composites [PDF]

open access: yesMaterials Research, 2019
Studies on gypsum modified by polymers have been conducted to assess the potential of improvement in the mechanical performance, water resistance and increasing the setting time, facilitating its handling.
Carlos Eduardo Marmorato Gomes   +4 more
doaj   +1 more source

A Poly(vinyl acetate)/Colloidal SiO2 Nanocomposite Synthesized by Emulsion Polymerization and Study of Its Mechanical, Thermal and Rheological Properties [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2017
Effect of colloidal nanosilica (SiO2) on the mechanical, thermal and rheological properties of poly(vinyl acetate) synthesized by in situ emulsion polymerization method was investigated.
Mehrdad Azamian Jazi1   +3 more
doaj   +1 more source

Confirming the existence of π-allyl-palladium intermediates during the reaction of meta photocycloadducts with palladium(ii) compounds [PDF]

open access: yes, 2000
The transient existence of π-allyl-palladium intermediates formed by the reaction of Pd(OAc)2 and anisole-derived meta photocycloadducts has been demonstrated using NMR techniques.
Penkett, Clive S   +3 more
core   +14 more sources

Study of Ethylene/Vinyl Acetate Transformation to Ethylene/Vinyl Alcohol Copolymer by NMR and DSC [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2007
Hydrolysis of ethylene-vinyl acetate copolymer in alkaline conditions using two systems of NaOH/methanol and KOH/isopropanol has been studied and the formation of ethylene-vinyl alcohol copolymer was systematically examined using NMR spectroscopy and DSC
H. Salehi Mobarakeh   +2 more
doaj   +1 more source

Properties and optimal manufacturing conditions of chicken feathers thermoplastics biocomposites [PDF]

open access: yes, 2015
The aim of this study was the analysis and characterization of composites based on thermoplastics (ethylene vinyl acetate, polypropilene and high-density polyethylene) and chicken feathers.
Carrillo Navarrete, Fernando   +3 more
core   +2 more sources

Effect of Acetate Group Content in Ethylene-Vinyl Acetate Copolymer on Properties of Composite Based on Low Density Polyethylene and Polyamide-6

open access: yesInternational Journal of Polymer Science, 2016
The effect of the content of vinyl acetate groups in ethylene-vinyl acetate copolymer on the properties of polymer composite based on low density polyethylene and polyamide-6 was studied.
Nhi Dinh Bui   +5 more
doaj   +1 more source

Laboratory and Field Experiments on the Effect of Vinyl Acetate Polymer-Reinforced Soil

open access: yesApplied Sciences, 2019
Soil stabilizer can enhance the soil properties, which can improve ecological environmental problems such as soil erosion and slope instability. This study investigates the water-related and mechanical properties of soil stabilization using a polymer ...
Zezhuo Song   +8 more
doaj   +1 more source

Evaluation of cementitious repair mortars modified with polymers

open access: yesAdvances in Mechanical Engineering, 2017
The aim of this study was to evaluate the effects of added polymers on the properties of repair mortars. Two types of polymers, ethylene vinyl acetate and polyvinyl acetate–vinyl carboxylate, were used as a replacement for 3%, 5%, and 8% of the cement ...
Tsai-Lung Weng
doaj   +1 more source

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