Introducing MEW2 Software: A Tool to Analyze MQ-NMR Experiments for Elastomers
Low-field time-domain proton Nuclear Magnetic Resonance (NMR) spectroscopy is an attractive and powerful tool for studying the structure and dynamics of elastomers. The existence of crosslinks and other topological constraints…
Tailoring/Tuning Properties of Polyester Urea-Urethanes through Hybridization with Titania Obtained Using the Sol–Gel Process
Hybrid materials have been studied because in these materials the properties of organic components, such as elasticity and biodegradability, could be combined with the properties of inorganic components, such as…
Improving the performance of biobased polyurethane dispersion by the incorporation of photo-crosslinkable coumarin
High biobased carbon content polyurethane dispersions (PUD) are a more sustainable alternative to conventional oil-derived waterborne dispersions in coatings. However, there are still many performance limitations from restricted availability of…
Síntesis, caracterización estructural de redes metal orgánicas (MOFs) y su evaluación en catálisis heterogénea de polímeros biodegradables
Metal-organic frameworks (MOF) are porous materials made up of organic binders and a metal cluster, currently attracting attention as heterogeneous catalysts in various reactions of interest. However, their application in…
Effect of gamma irradiation on the physical properties of poly(butylene succinate) (PBS) and poly(butylene succinate-co-adipate) (PBSA)
PBS and PBSA were irradiated with gamma up to a 400 kGy dose. Gel content appeared at approximately 100 kGy dose with a higher gel content for PBSA. Charlesby-Pinner analysis indicated that…
Crosslinked networks in electron beam irradiated polyethylenes evaluated by proton low-field NMR spectroscopy
Effect of electron beam (EB) irradiation is analyzed in low and high density polyethylenes (LDPE and HDPE, respectively) at different doses. Parameters as important as degree of crystallinity, melting or…
Thermally Rearranged Mixed Matrix Membranes from Copoly(o-hydroxyamide)s and Copoly(o-hydroxyamide-amide)s with a Porous Polymer Network as a Filler — A Comparison of Their Gas Separation Performances
Copoly(o-hydroxyamide)s (HPA) and copoly(o-hydroxyamide-amide)s (PAA) have been synthesized to be used as continuous phases in mixed matrix membranes (MMMs). These polymeric matrices were blended with different loads (15 and 30…
Micronized Recycle Rubber Particles Modified Multifunctional Polymer Composites: Application to Ultrasonic Materials Engineering
There is a growing interest in multifunctional composites and in the identification of novel applications for recycled materials. In this work, the design and fabrication of multiple particle-loaded polymer composites,…
Response of water-biochar interactions to physical and biochemical aging
Biochar aging may affect the interactions of biochar with water and thus its performance as soil amendment; yet the specific mechanisms underlying these effects are poorly understood. By means of FTIR,…
Supramolecular Polycaprolactone-Based Polyurethanes with Thermally Activated Shape-Memory Behavior
In this work, using supramolecular polyurethanes theories, two polycaprolactone-based polyurethanes with 2-ureido-4-[1H]-pyrimidinone (UPy) motifs capable of forming quadruple hydrogen bonds were synthetized and characterized, focusing our attention on their capability…
Dynamic Permittivity Measurement of Ground-Tire Rubber (GTR) during Microwave-Assisted Devulcanization
Many efforts are being made to find innovative ways of recycling rubber from end-of-life tires (ELTs), also called ground tire Rubber (GTR). Recycling through devulcanization allows the reintroduction of rubber…
Chemical upcycling of poly(ethylene terephthalate) waste: Moving to a circular model
The circular economy is a path that society, governments, and business must adopt to develop a viable and sustainable model for plastic production. Following the route guided by the United…
ESR investigation of NR and IR rubber vulcanized with different cross-linking agents
ESR investigation of NR and IR rubber vulcanized with different cross-linking agents Express Polymer Letters, 2016, 10 (1), 2-14 Posadas, P.a , Malmierca, M.A.a, González-Jiménez, A.a, Ibarra, L.a, Rodríguez, A.a,…
Effect of dose and temperature on the physical properties
Effect of dose and temperature on the physical properties of an aliphatic thermoplastic polyurethane irradiated with an electron beam (2015) Radiation Physics and Chemistry, 112, pp. 61-70. Adem, E.a , Angulo-Cervera, E.a , González-Jiménez,…
2012 Artículos Científicos | Scientific articles
I. Mora-Barrantes, J.L. Valentín, A. Rodríguez, I. Quijada-Garrido, R. París “Poly(styrene)/silica hybrid nanoparticles prepared via ATRP as high-quality fillers in elastomeric composites” Journal of Material Chemistry, 22, 1403-1410, 2012 I.…