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Article
PDMS behaviour under confinement in strongly segregated mesophases of PS-PDMS diblock copolymers
A dynamic and thermal investigation by means of broadband dielectric spectroscopy and temperature modulated differential scanning calorimetry on the PDMS behaviour in several highly segregated diblock copolym...
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Article
Dynamics of confined water in different environments
We report dielectric and calorimetric results on water solutions of poly (vinyl methyl ether) (PVME), poly(vinyl pyrrolidone) (PVP) and pentaethylene glycol (5EG). In spite of the fact that water is confined i...
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Article
Self-confined polymer dynamics in miscible binary blends
The segmental dynamics of PVME within the single-phase state of poly(styrene)/poly(vinyl methyl ether) blends (PS/PVME) was examined by dielectric spectroscopy. A particular attention has been given to the hig...
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Article
Segmental order and dynamics of polymer chains confined in block copolymer lamellar mesophases: NMR and dielectric relaxation studies
The PDMS lamellar sublayers of a poly(styrene)-poly(dimethylsiloxane) diblock (PS-PDMS) and PS-PDMS-PS triblocks are investigated by NMR and dielectric spectroscopy. Some segments of the confined PDMS chains d...
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Article
Methyl group dynamics in a confined glass
We present a neutron scattering investigation on methyl group dynamics in glassy toluene confined in mesoporous silicates of different pore sizes. The experimental results have been analysed in terms of a barr...
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Article
Secondary relaxation in two engineering thermoplastics by neutron scattering and dielectric spectroscopy
We present a preliminary investigation of the dynamics of glassy polycarbonate (PC) and polysulfone (PSF) by means of quasielastic neutron scattering and dielectric spectroscopy. Whereas the consideration of p...
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Article
Methyl group dynamics in a glass and its crystalline counterpart by neutron scattering
Methyl group dynamics in the same sample of sodium acetate trihydrate in crystalline and glassy states have been investigated by neutron scattering. Measurements have been carried out in the whole temperature ...
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Article
The rotational barrier for methyl group dynamics in anhydrous sodium acetate
Methyl group dynamics in anhydrous sodium acetate have been investigated by neutron scattering. The results in the rotational tunnelling and crossover regimes can be understood in terms of a threefold rotation...
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Article
Mathematic predictive models for calculating copper, iron and zinc dialysability in infant formulas
Differences in the dialysability of a mineral element from infant formulas of the same type were detected in a previous study. As these may be due to the effects that different levels of the components of the...
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Article
In vitro dialyzability of zinc from different salts used in the supplementation of infant formulas
Seven zinc salts—acetate, chloride, lactate, sulfate, citrate, gluconate, and oxide—were added to milk—and soy-based infant formulas to estimate possible differences in zinc availability depending on the type ...
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Article
Dialyzability of iron, zinc, and copper of different types of infant formulas marketed in Spain
The bioavailability of trace elements in infant formulas is affected by different physiological and dietetic factors. In vitro methods based on element dialyzability have been proposed to estimate the bioavail...
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Chapter
Dynamics of the α-relaxation in glass-forming polymeric systems. Study by neutron scattering and relaxation techniques
The dynamics of the α-relaxtion in three glass-forming polymeric systems has been studied by means of quasielastic neutron scattering as well as by relaxation techniques. By using these techniques, we have covere...
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Article
Environmental cadmium, lead and nickel contamination: possible relationship between soil and vegetable content
The cadmium, lead and nickel content of soils of four agricultural areas exposed to different degrees of environmental pollution and vegetables grown there were measured by Atomic Absorption Spectrophotometry ...
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Chapter and Conference Paper
Parallel-plate viscometry of amorphous polymers in the range 104 to 1010 Pa s
The parallel-plate plastometer technique has been applied to the study of the viscous behaviour of glassy polymers in the supercooled liquid state above the glass-transition temperature T ...
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Article
Viscosity and relaxation times temperature behaviour above the glass transition in some glassy polymers
We have performed mechanical and dielectric dynamic measurements above the glass-transition temperature range of two glassy-polymers: Poly(Hydroxyether of Bisphenol-A) and Poly(Carbonate of Bisphenol-A). From ...
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Article
Switching electrical power of bulk chalcogenide glassy semiconductors
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Article
Theoretical interpretation of activation energies associated with the glass transition, obtained from td or DSC experiments
Thermodilatometry (TD) and differential scanning calorimetry (DSC) experiments in the glass-transition region of different kinds of glasses have been simulated on a computer by means of a previously proposed t...
