Water diffusion through a TiO₂/poly (carbonate urethane) nanocomposite designed for the eco-sustainable protection of outdoor cultural heritage stonework was investigated. Water is recognized as a threat to heritage, hence the aim was to gather information on the amount of water uptake, as well as of species of water molecules absorbed within the polymer matrix. Gravimetric and vibrational spec...

This study aimed to evaluate the physical and mechanical properties of cross-laminated timber (CLT) characteristics from mangium (Acacia mangium) puspa (Schima wallichii) woods their combination using polyurethane (PU 1.2) adhesives. The manufacture CLT began with basic adhesive characterization thermo-mechanical analysis. Wood material’s chemical were also tested its response PU 1.2 wettabilit...

Physiologically based pharmacokinetic (PBPK) modeling was used to assess the low-dose exposure of patients to the carcinogen 2, 4-toluenediamine (2,4-TDA) released from the degradation of the polyester urethane foam (PU) used in Meme silicone breast implants. The tissues are represented as five compartments: liver, kidney, gastrointestinal tract, slowly perfused tissues (e.g., fat), and richly ...

Small-angle neutron scattering experiments by interpenetrating networks of poly(carbonate-urethane) and polyvinyl pyridine reveal that there is some degree of microphase separation at all compositions, possibly, in some compositions, into a bicontinuous phase. The domain size is some undred angstroms in the samples with only one glass transition

An array sensor comprising six off-the-shelf indicators doped in a poly(ether-urethane) recognizes five cations, seven anions and thirty-five ion pairs at pH 5-9 in water. Such a discrimination capacity and recognition efficiency (6 : 35) with > or = 93% accuracy is rare. Low cost and wide availability of various polymers and indicators could make this approach useful in numerous applications.

Abbreviations MEMS Microelectromechanical systems NEMS Nano-electromechanical systems PCL Polycaprolactone PET Polyethylene terephthalate PGA Polyglycolic acid PLA Polylactic acid PU Polyurethane PTFE Poly(tetrafl uoroethylene) PMMA Polymethylmethacrylate UHMWPE Ultrahigh molecular weight polyethylene