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- W2184187790 abstract "At about hundred years since when polyvinyl alcohol (PVA) was obtained by Hermann and Haehnel this polymer is in the top of polymers from point of view of academic researchers, end users interest and market demand. Its excellent films, fibres and hydrogels forming, emulsifying and adhesive properties, solublility in water, biodegradability, combined with its semicrystalline character, ability to form hydrogen bonding and versatility to be functionalized in bulk and at surface make it an ideal choice as adhesive, paper coatings, ceramic binder, textile wrap sizing, polarizers and optical filters, membranes with selective permittivity etc. Thus PVA meet the needs of today's sustainability requirements for consumer from numerous fields including food, agriculture, chemical, pharmaceuticals, textiles, cosmetics, medical etc. Large quantities of PVA are manufactured to cover the variation of the demands. It is commercially available in a broad range of degrees of polymerisation and hydrolysis [1]. Taking into account the PVA properties, it was expected that this polymer as matrix to be found a developing niche in nanotechnology. The different type of nanomaterials nanoparticles or clusters, nanolayers or nanofilms, nanofibres and nanodots have been proved to be optimal candidates for many important applications in medicine, industry and agriculture. Most of polymer and composite fibres with nanoscale diameters were produced by electrospinning process based on the uniaxial stretching of a viscoelastic jet derived from a polymer solution, gel or melt under electrostatic force [2]. The fibres obtained via electrospinning are assembled as a three dimensional structured fibrous membrane with controllable pore structure and high specific surface area. The very small diameter of nanofibres, their high surface area to volume, small interfibrous pore size, superior mechanical performance, versatility of design make them enable for development of advanced materials [3, 4]. The usage of polymeric water based systems as spinning media is preferable for an environmentally acceptability [5]. The applications of electrospun fibres include multifunctional membranes, biomedical structural elements, protective shields in speciality fabrics, filter media for submicron particles in the separation industry, composite reinforcement [3, 6, 7, 8, 9, 10]." @default.
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- W2184187790 date "2011-01-01" @default.
- W2184187790 modified "2023-09-26" @default.
- W2184187790 title "DEVELOPMENT AND CHARACTERIZATION OF POLY(VINYL ALCOHOL) MATRIX FOR DRUG RELEASE" @default.
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