Polyurethanes (PU) have a wide variety of applications due to possessing tailored properties which can be imparted by composition. The combination polyols in different ratios provide specific for the segmented PU, such as mechanical strength, elasticity, hydrophilicity and so on. In this work, amphiphilic polyurethanes, based on poly(ε-caprolactone)diol (PCL-diol) poly(2-ethyl-2-oxazoline)diol ...

BACKGROUND Polypropylene mesh used as a mid-urethral sling is associated with severe clinical complications in a significant minority of patients. Current in vitro mechanical testing shows that polypropylene responds inadequately to mechanical distension and is also poor at supporting cell proliferation. AIMS AND OBJECTIVES Our objective therefore is to produce materials with more appropriate...

The paper presents some results on the ability of palm oil polyol to replace petroleum-based in polyurethane (PU) synthesis. In this study, with amine functionality hydroxyl value (OH value) between 240 -253 mg KOH/g was used as component conventional polyol. Four different formulationsof coating have been prepared using pre-polymer process namely PU1, PU2, PU3 and PU4 isophorone diisocyanate r...

Novel bio-renewable castor oil based polyurethane (PU)-silica nanocomposite films were prepared using castor oil, 1,6-hexamethylene diisocyanate and dibutyltin dilaurate in tetrahydrofuran at room temperature. ATR-FTIR spectra confirm the formation of polyurethane and the presence of silica nanoparticles in the polyurethane matrix. The increase of Si nanoparticle content shifts the peak positio...

Facile synthesis and detailed characterization of photopolymerizable and biocompatible poly(ethylene glycol) dimethacrylates (PEGDM) and poly(ethylene glycol) urethane-dimethacrylates (PEGUDM) are described. Poly(ethylene glycol)s of various molecular masses (M(n) = 1000 to 8000 g/mol) were reacted with methacrylic anhydride or with 2-isocyanatoethyl methacrylate to form PEGDMs and PEGUDMs, res...

Within the fields of regenerative medicine and tissue engineering, development tough hydrogel biomaterials is a challenging topic that has received much attention over past few years. Recently, method was developed to synthesize combinatorial poly(urethane-isocyanurate) (PUI)-type hydrogels by trimerization mixtures NCO-functionalized prepolymers. As this synthesis approach allows large degree ...

The aim of this paper is to demonstrate lithium metal battery cells assembled with high potential cathodes produced by sustainable processes. Specifically, LiNi0.5Mn1.5O4 (LMNO) electrodes were fabricated using two different water-processable binders: pullulan (PU) or the bifunctional electronically conductive poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonate) (PEDOT:PSS). cell performanc...

Biodegradable elastomers have recently found widespread application in many areas of biomedical engineering such as tissue engineering, drug delivery, and bioimaging. In particular, the recent developments in research have led to the creation of citric acid based polymers with enhanced mechanical properties, novel design strategies for crosslinking, nanoporous features, and unique photoluminesc...