Photopolymers are interesting materials for use in recording information in holography. We study the holographic behavior and stability of volume holograms recorded in poly(vinyl alcohol)--acrylamide photopolymers with and without a cross linker. Using a first-harmonic diffusion model, we analyze the residual monomer that remains when volume diffraction gratings are recorded in photopolymer mat...

The present work was aimed to examine the effects of incorporation of each of two different types of nanoclay, i.e. Cloisite Na+ and Cloisite 30B, into PVA foam on cellular morphology and water absorption capacity. Foam samples containing 0.0-10.0 wt% of each of the two types of nanoclay alone were prepared using mechanical foaming. Accordingly, PVA/organoclay/water suspensions were prepare...

The chemical composition of two commercially available lavender fragrance oils was determined and compared. process concentration by partial evaporation carried out its influence on changes in the content individual components analysed mixtures examined. effect poly(vinyl alcohol)-based polymer matrix release volatile substances from tested as well. presence affects relative released liquid pha...

thermoplastic starch (tps) materials present several advantages to the plastic industry andwhen blended with other materials they can exhibit improved mechanical and moisturesensitivity properties compared to pure tps materials. further investigations on tps: pvablends are of particular interest due to their excellent compatibility and improved properties suchas tensile strength, elongation, to...

Over the past several decades, formulation of novel nanofiber-based drug-delivery systems has been a frequent focus scientists around world. Aiming to introduce nanofibrous transdermal system treat pain, nanofiber mats buprenorphine-loaded poly (vinyl pyrrolidone) (Bup/PVP) and poly(vinyl alcohol)/poly(vinyl (Bup/PVP/PVA) were successfully fabricated by electrospinning process for drug delivery...

Poly(vinyl alcohol) (PVA) nanofibres were obtained by electrospinning of PVA/water solutions. Formation of beaded fibres combined with decreased fibre diameters was observed for low PVA concentrations. Electrospinning of blends of PVA of different molecular weight resulted in less bead formation and smaller fibre diameters as compared to corresponding homopolymers of similar viscosity.

Low-cost black coating with freestanding well-aligned carbon nanotubes (CNTs), fabricated from CNT-dispersive in water-soluble poly(vinyl alcohol) (PVA) matrix, exhibits a bright white-light emission with narrow-band RGB (red, green, blue) colors having CIE (0.327, 0.349) chromaticity coordinate when subjected to the microwave irradiation.

Photoluminescent polymer dots (PDs) were prepared by a moderate hydrothermal treatment of poly(vinyl alcohol) (PVA). A single excited state was established in the PL mechanism by ultrafast spectroscopy. Moreover, the applied method be used to prepare fluorescent polymer dots from other non-conjugated polymers, and shows general universality.

Carbon nanomaterials such as multiwalled carbon nanotubes (MWCNTs) and graphene oxide (GO) have been functionalized by highly hydrophilic and biocompatible poly(vinyl alcohol) (PVA) for loading and delivery of an anticancer drug, camptothecin (CPT). For the first time, CPT was loaded onto MWCNT-PVA and GO-PVA through π-π interactions and its capability to kill human breast and skin cancer cells...