Gas Permeability and Temperature-Dependent Free-Volume Studies in Polyurethane Membranes by Positron Lifetime and Doppler Spectroscopies

M.F. Ferreira Marques; Paulo M. Gordo; C. Lopes Gil; Adriano P. de Lima; D. Placco Queiroz; Maria Norberta de Pinho; Z. Kajcsos; Gilles Duplâtre

doi:10.4028/www.scientific.net/MSF.445-446.289

Paper Titles

Looking for Positive Mixing Volume in Polyamide/Acrylic Rubber Blends with Use of Positron Annihilation Lifetime Spectroscopy and Other Methods
p.277

Carbon-Implanted Polyethylene Characterized by a Pulsed Slow-Positron Beam
p.280

General Trends of Positronium Annihilation in Porous Molecular Substances
p.283

Microstructural Studies of Porous Substances
p.286

Gas Permeability and Temperature-Dependent Free-Volume Studies in Polyurethane Membranes by Positron Lifetime and Doppler Spectroscopies
p.289

Positronium in Low Temperature Mesoporous Thin Films
p.292

Positron Annihilation Lifetime Measurement in Supercritical Fluid of N₂O
p.295

Odd-Even Differences in o-Ps Properties in Some Solid Long-Chain Alkanes
p.298

Positronium Formation Reaction of Polarized Positrons and Polarized Electrons
p.301

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Gas Permeability and Temperature-Dependent Free-Volume Studies in Polyurethane Membranes by Positron Lifetime and Doppler Spectroscopies

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Materials Science Forum (Volumes 445-446)

Pages:

289-291

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.445-446.289

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Online since:

January 2004

Authors:

M.F. Ferreira Marques, Paulo M. Gordo, C. Lopes Gil, Adriano P. de Lima, D. Placco Queiroz, Maria Norberta de Pinho, Z. Kajcsos, Gilles Duplâtre

Keywords:

Doppler Broadening, Free Volume, Polyurethane (PU), Positron Lifetime

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