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On the strategies for incorporating nanosilica aqueous dispersion in the synthesis of waterborne polyurethane silica nanocomposites, Effects on morphology and properties
(2016)
In this work the synthesis of waterborne polyurethane/nanosilica nanocomposites by using two differ- ent strategies is presented, starting from a vinyl terminated polyurethane prepolymer (PUP) based on isophorone diisocyanate ...
Influence of dynamic crosslinking on the morphology, crystallization, and dynamic mechanical properties of PA6,12 EVA blends
(2016)
This study investigated the effect of dynamic crosslinking of polyamide 6,12 and random copolymers of ethylene and vinyl
acetate blends (PA6,12/EVA) on the morphology, crystallinity, and dynamic mechanical properties. The ...
Chitosan-graft-poly(n-butyl acrylate) copolymer Synthesis and characterization of a natural synthetic hybrid material
(2016)
Two chitosan polymers with different deacetylation degree and molecular weight were subjected to graft- ing reactions with the aim to enhance the properties of these bio-based materials. Specifically, n-butyl acrylate in ...
Starch Polyvinyl Alcohol blends containing Polyurethane as plasticizer
(2016)
Starch-based films containing 70wt% of starch and a combination of poly(vinyl alcohol) and a low glass transition temperature polyurethane as plasticizer were prepared. The effect of PVA/PU ratio content on the morphology ...
Evaluation of pH-sensitive poly(2-hydroxyethyl methacrylate-co-2- (diisopropylamino)ethyl methacrylate) copolymers as drug delivery systems for potential applications in ophthalmic therapies ocular delivery of drugs
(2015)
Smart polymers like pH sensitive systems can improve different pharmacological treatment. In this work the behavior of copolymers containing 2-hydroxyethyl methacrylate (HEMA) with different proportions of 2-(diisopropyl ...
Surface, thermal, and mechanical properties of composites and nanocomposites of polyurethane PTFE nanoparticles
(2014)
Films from blends of polyurethane and nano-polytetrafluoroethylene aqueous dispersions (PU/nanoPTFE) were prepared, and the effect of the addition of different amounts of PTFE nanoparticles (50 nm) was studied. The changes ...
Evaluation of pH-sensitive polyurethane 2-diethylaminoethyl methacrylate hybrids potentially useful for drug delivery developments
(2015)
Smart sensitive polymers have been used to improve processes in drug delivery. In this article, we evaluate the behavior of polyurethane/N,N-diethylaminoethyl methacrylate hybrids (PU/DEA) as pH- responsive polymers ...
Effect of antioxidant active films on the oxidation of soybean oil monitored by Fourier transform infrared spectroscopy
(2014)
An active film prepared from waterborne polyurethane incorporated with different concentrations of butylated hydroxytoluene (BHT) and a-tocopherol was developed, and the films’ antioxidant character- istics were studied ...
Synthesis and swelling behavior of pH-responsive polyurethane poly(2-(diethylamino)ethyl methacrylate) hybrid materials
(2013)
Polyurethane (PU)/poly[2-(diethylamino)ethyl methacrylate] hybrids, having a chemical bond between the PU and acrylic moieties and with different compositions, were prepared by the dispersion polymerization of 2-(diethyl ...
Synthesis, characterization and swelling behavior of new pH-sensitive hydrogels derived from copolymers of 2-hydroxyethyl methacrylate and 2-(diisopropylamino) ethylmethacrylate
(2012)
The aim of this work was to synthesize and to characterize new pH-sensitive hydrogels that can be used in the controlled
release of drugs, useful for dermal treatments or ophthalmology’s therapies. Copolymers containing ...