vinyl alcohol
Crosslinked Electrospun Poly (Vinyl Alcohol) Nanofibers Coated by Antibacterial Copper Nanoparticles
... (vinyl alcohol) (PVA) nanofibers were prepared via electrospinning of concentrated PVA ...(vinyl alcohol) and ethylene glycol (EG), in an aqueous ...
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Effect of Seawater Treatment on the Mechanical Properties of Oil Palm Empty Fruit Bunch Fibre/Poly(vinyl alcohol) Composites
... Poly(vinyl alcohol)(PVA) powder (5-10 g) mixed with distilled water (50-100 ml) using hot plate at the consistent temperature of 90 °C for 2 h until it fully dissolved and became viscous and transparent, ...
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Mechanical Properties of Poly (vinyl alcohol) Based Blends and Composites
... Alupei et al. [89] studied swelling properties of PVA and xanthan gum hydrogels chemically crosslinked by epichlorohydrin. It was concluded that crosslinking PVA and xanthan gum in the presence of epichlorohydrin ...
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Biocidal Polymers by Chemical Modification of (Ethylene-vinyl Alcohol) Copolymers
... Abstract Novel modification of ethylene- vinyl alcohol copolymers were carried out. The modifications of series of the copolymers were carried out by reacting them with chloroacetyle chloride followed by ...
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OXIDATION OF POLY (VINYL ALCOHOL) BY CHROMIC ACID IN PRESENCE OF MODERATELY STRONG ACID; A KINETIC AND MECHANISTIC APPROACH
... Kinetics and mechanism of oxidation of Poly (Vinyl Alcohol) (PVA), a synthetic polymer by Chromic Acid in presence of moderately strong acid (Monochloroacetic Acid) has been studied spectrophotometerically. ...
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Development of Polycaprolactone/Poly(Vinyl Alcohol)/Clay Microparticles by Spray Drying
... Poly(vinyl alcohol) (PVAL) is an amphiphilic semicrystalline polymer, with good interfacial adsorption capacity, and for this reason PVAL has been used in the production of emulsions and microparticles, ...
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Thermoresponsive, well defined, poly(vinyl alcohol) co polymers
... Here the application of alkoxylated poly(vinyl alcohol) as a highly tunable, and biocompatible, thermoresponsive polymer scaffold is studied in detail. Using RAFT/MADIX polymeri- zation it was possible to ...
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Ionic-interaction of aqueous and alcoholic poly(vinyl alcohol) in the presence of protons
... hol–PVOH solvent systems were studied at different temperatures by the vis- cosity method. The viscosities of the poly(vinyl alcohol) (PVOH) were inc- reased with increasing concentration of PVOH and ...
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Effect of Solvent on the Optical and Electrical Properties of Poly (Vinyl Alcohol) Films
... ABSTRACT: Poly(vinyl alcohol) (PVA) is considered to be an interesting, low-cost, conductive polymer with useful physical and chemical properties. We describe the preparation of high-quality PVA films by ...
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A Kinetics Study on the Thermal Degradation of Starch/Poly (Vinyl Alcohol) Blend
... The other component of cited blend is Poly (vinyl alcohol) (PVA) that is an interesting water-soluble synthetic polymer with a broad range of applications. Mainly it is used as a sizing agent or stabilizer ...
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Thermal and structural studies of poly (vinyl alcohol) and hydroxypropyl cellulose blends
... poly(vinyl alcohol) (PVA) with a poten- tially useful natural biopolymers such as hy- droxypropyl cellulose (HPC) seems to be an in- teresting way of preparing a polymeric ...
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Design and evaluation of nano-hydroxyapatite/poly(vinyl alcohol) hydrogels coated with poly(lactic-co-glycolic acid)/nano-hydroxyapatite/poly(vinyl alcohol) scaffolds for cartilage repair
... Poly(vinyl alcohol) (PVA) hydrogels have been widely used in synthetic cartilage ...(nano-HA)/poly(vinyl alcohol) (PVA) hydrogels coated with a poly(lactic-co-glycolic acid) (PLGA)/nano-HA/PVA ...
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In-situ preparation of hydroxyapatite nanorod embedded poly (vinyl alcohol) composite and its characterization
... Hydroxyapatite (HAp) nanorod embedded composite was prepared using poly (vinyl alcohol) (PVA) as a matrix with different weight percentages (wt. %) The role of PVA composition on the crystallite size, ...
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POLY(VINYL ALCOHOL) NANOCOMPOSITE HYDROGELS FOR INTERVERTEBRAL DISC PROSTHESES
... Poly(vinyl alcohol) (PVA) hydrogels are bio- compatible, have mechanical behaviour similar to natural tissues, and properties that can be tuned by varying polymer concentration and physical crosslinking ...
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Room Temperature Preparation of Aluminum Hydroxide Nanoparticles and Flame Retardant Poly Vinyl Alcohol Nanocomposite
... flame retardancy of the poly vinyl alcohol (PVA) matrix was studied using UL-94. Nanostructures were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform ...
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Poly(Vinyl Alcohol) Infiltrated Carbon Nanotube Carpets
... It is long now well established that CNTs have poor dispersibility in polymeric matrices unless their surface is previously chemically modified or elsewise functionalized [2,3]. Under this route, polymer matrix ...
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Synthesis and Characterization of New Polymers Derivatives from Copoly (Vinyl Chloride – Vinyl Alcohol)
... In this work, new copolymer derivatives linked to poly (vinyl chloride- vinyl alcohol) (1-4) was synthesized via multisteps synthesis. Reaction of poly(vinylalcohol) (1) with adipoyl chloridein ...
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Composite poly(vinyl alcohol)/poly(vinyl acetate) electrospun nanofibrous mats as a novel wound dressing matrix for controlled release of drugs
... poly(vinyl alcohol) (PVA), poly(vinyl acetate) (PVAc), and a 50:50 composite blend, loaded with ciprofloxacin HCl (CipHCl), were successfully prepared by an electrospinning technique for the first ...
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Functionalized Antimicrobial Electrospun Poly (vinyl alcohol) Nanowebs
... Owing to the advantages of using PHMBs in treating wounds, the functionalization of electrospun nanofibers with PHMBs for biomedical applications has been recently investigated. Dilamian et al. (2013) have studied the ...
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Preparation and Characterization of Aligned and Random Nanofibrous Nanocomposite Scaffolds of Poly (Vinyl Alcohol), Poly (e-Caprolactone) and Nanohydroxyapatite
... Nanofibrous scaffolds produced by electrospinning have attracted much attention, recently. Aligned and random nanofibrous scaffolds of poly (vinyl alcohol) (PVA), poly (ε-caprolactone) (PCL) and ...
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