Results 31 to 40 of about 1,052,861 (299)

Structure and properties of fiber-reinforced polypropylene prepared by direct incorporation of aqueous solution of poly(vinyl alcohol) [PDF]

open access: yes, 2020
Poly(vinyl alcohol) (PVA) is immiscible with most conventional plastics and also unsuitable for melt processing owing to its extensive hydrogen bonding. Therefore, there have been few studies concerning the melt-mixing of PVA with standard plastics.
Aridome, Norifumi   +3 more
core   +1 more source

Effect of Chain Extender and Banana Fiber on Melt-Processing Properties of Poly (vinyl alcohol) [PDF]

open access: yesWarasan Witthayasat Lae Theknoloyi Mahawitthayalai Mahasarakham, 2019
This research aims to study the effect of chain extender and banana fiber on melt processing of poly (vinyl alcohol). 0 and 5 %w/w of banana fiber and 0, 2 and 4 %w/w of chain extender were melt-blended with poly (vinyl alcohol) in an internal mixer at ...
Yottha Srithep
doaj  

Investigation on the thermal properties of new thermo-reversible networks based on poly(vinyl furfural) and multifunctional maleimide compounds

open access: yeseXPRESS Polymer Letters, 2012
New thermo-reversible networks were obtained from poly(vinyl furfural) and multifunctional maleimide monomers by Diels-Alder (DA) and retro-DA reactions.
C. Gaina   +4 more
doaj   +1 more source

Separation of Aqueous Isopropanol Through Chitosan/Poly (Vinyl Alcohol) Blended Membranes by Pervaporation

open access: yesInternational Islamic University Malaysia Engineering Journal, 2012
Blend membranes consisting of chitosan/poly (vinyl alcohol) (CS/PVA) were prepared from a solution casting method and characterized via the pervaporation separation of isopropanol-water mixtures.  The solution of pure chitosan was blended with poly(vinyl
S. H. Tan, A. L. Ahmad   +1 more
doaj   +1 more source

Poly(vinyl alcohol)-based membranes for metoprolol transdermal delivery

open access: yes, 2021
In this work controlled release devices for transdermal administration of metoprolol were developed. Poly(vinyl alcohol) and poly(vinyl pyrrolidone) were used for producing membranes by solvent- casting technique.
SA Aljlil   +4 more
core   +1 more source

Reduction of V4+ from V5+ using polymer as a surfactant for electrochemical applications

open access: yesInternational Journal of Electrochemical Science, 2010
Vanadium dioxide nanowires and nanobelts were synthesized from vanadium pentoxide xerogel through a hydrothermal process. V5+ was reduced to V4+ by a polyblend of poly(vinyl pyrrolidone) (PVP) and poly(vinyl alcohol)(PVA), and by poly(vinyl alcohol)(PVA).
V S Reddy Channu   +5 more
doaj   +1 more source

High-Efficiency Near-Infrared-to-Visible Photon Upconversion in Poly(vinyl alcohol) Porous Film [PDF]

open access: yes, 2022
Triplet-triplet annihilation photon upconversion (TTA-UC) has received significant attention in energy harvesting applications such as solar cells. The realization of high UC performance in the form of films is a crucial factor for the incorporation of ...
Mami, Hagihara   +6 more
core   +2 more sources

Application of Biomaterials and Inkjet Printing to Develop Bacterial Culture System

open access: yesAdvances in Materials Science and Engineering, 2015
We created an automated bioassay system based on inkjet printing. Compared to conventional manual bacterial culture systems our printing approach improves the quality as well as the processing speed.
Tithimanan Srimongkon   +2 more
doaj   +1 more source

The MR affect on optical properties for poly (Vinyl alcohol) films

open access: yesمجلة بغداد للعلوم, 2011
optical properties of pure poly(vinyl Alcohol) films and poly(vinyl Alcohol) doped with methyl red were study, different percentage prepared with constant thickness using casting technique. Absorption, Transmission spectra have been recorded in order to
Baghdad Science Journal
doaj   +1 more source

In situ formation of poly(vinyl alcohol)–heparin hydrogels for mild encapsulation and prolonged release of basic fibroblast growth factor and vascular endothelial growth factor

open access: yesJournal of Tissue Engineering, 2016
Heparin-based hydrogels are attractive for controlled growth factor delivery, due to the native ability of heparin to bind and stabilize growth factors.
Justine J Roberts   +4 more
doaj   +1 more source

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