The influence of processing conditions on the thin film microstructure is a fundamental question that must be understood to improve the performance of solution-processed organic electronic materials. Using grazing-incidence X-ray diffraction, we have studied the structure of thin films of a tetra(aniline)-surfactant complex prepared by drop-casting from five solvents (hexane, chloroform, tetrah...

Alloys of Poly (Methyl methacrylate) (PMMA) and Poly (vinyl Chloride) (PVC) were prepared by solvent casting techniques. Physiochemical characteristics of the products were studied. It was found that at certain relative concentration, some of these properties were enhanced, while in some, degraded relative to the constituent homopolymers. These results were interpreted in terms of the interacti...

Reiter has recently reported a situation in which the dewetting of quasi-solid films is linked to plastic deformation--rather than viscous flow--resulting from capillary forces. Herein we propose that, in thin films of some glassy polymers--especially poly(methyl methacrylate) (PMMA)--prepared by spin-casting from solvent, structural relaxation might impart sufficient stress to cause plastic de...

Many graphical objects can be represented by swept volumes (including its subset – generalised cylinders) by sweeping 2D or 3D templates along 3D trajectories. In this paper, we present a new approach for constructing swept volumes using image templates. We utilise scalar fields as our underlying data type, and employ volume ray casting techniques for rendering swept volumes in their original s...

Cellulose acetate (CA) as polymer, glycerol derivatives (namely triacetin, diacetin, monoacetin or glycerol-formal) solvents and 2-methyltetrahydrofuran (2-MeTHF) co-solvent were selected bio-based ingredients for the preparation of full-bio-based nanofiltration membranes via non-solvent induced phase separation (NIPS). Membrane performance was investigated using an aqueous rose bengal (1017Da)...

ABSTRACT. Nano hydroxyapatite (n-HAp) and its composites have shown a great development in the field of tissue regeneration controlled drug delivery due to good biocompatibility bioactivity behavior. Furthermore, HAp-based nanocomposites enhance mechanical properties. These synthetic HAp can also be tailored fabricate scaffold with porosity which facilitate growth cell engineering. In this pape...

In the production of polymeric membranes used in water treatment by non-solvent-induced phase separation (NIPS) method, materials membrane casting solution and interaction these greatly affect properties performance obtained membranes. this study, polyethersulfone (PES) are produced NIPS method using two different solvents, dimethyl sulfoxide (DMSO) N-methyl-2-pyrrolidone (NMP), polyvinylpyrrol...

Abstract For the use of polymers as biomaterials in production implants, several processing methods are needed. Besides injection molding or Fused Deposition Modeling temperature based processes, also solvent processes were performed such solvent-casting and electrospinning. As fabrication medical devices makes potentially hazardous toxic solvents, they have to be extracted from final device. a...