BackExaminar OpenAire por departamento (eus.) "Polimeroen zientzia eta teknologia"
Now showing items 61-80 of 95
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Polyether Synthesis by Bulk Self-Condensation of Diols Catalyzed by Non-eutectic Acid Base Organocatalysts
Basterrechea Gorostiza, Andere; Gabirondo Amenabar, Elena; Jehanno, Coralie; Zhu, Haijin; Flores, Irma; Müller Sánchez, Alejandro Jesús
; Etxeberria Lizarraga, Agustín ; ; Coulembier, Olivier; (American Chemical Society, 2019-01-25)
Polyethers constitute a well-established class of polymers covering a wide range of applications from industrial man-ufacturing to nanomedicine. Nevertheless, their industrial implementation is limited to short chain ... -
Probing disorder and dynamics in composite electrolytes of an organic ionic plastic crystal and lithium functionalised acrylic polymer nanoparticles
(Elsevier, 2023-01-20)Solid composite electrolytes combining an ionic molecular phase to facilitate ion transport with a polymeric component to provide mechanical strength are promising material for solid state batteries. However, the ... -
Promotion of self-nucleation with latent Form I nuclei in polybutene-1 and its copolymer
Wang, Zefan; Dong, Xia; Cavallo, Dario; Müller Sánchez, Alejandro Jesús; Wang, Dujin (American Chemical Society, 2018-08-02)
The formation of Form I nuclei of polybutene-1 (PB-1) and its copolymer with polyethylene (PB1-ran-PE) has been studied by means of modified self-nucleation protocols. Even when the self-nucleation temperature was high ... -
Recent Applications of the Successive Self-nucleation and Annealing (SSA) Thermal Fractionation Technique
; ; Müller Sánchez, Alejandro Jesús (Frontiers Media S.A., 2022-09-28)
Successive Self-nucleation and Annealing (SSA) is a thermal fractionation technique that is performed by Differential Scanning Calorimetry (DSC). The combination of non-isothermal and isothermal steps applied during SSA ... -
Reduction of the Lattice Thermal Conductivity of Polymer Semiconductors by Molecular Doping
Zapata Arteaga, Osnat; Perevedentsev, Aleksandr; Marina Barbier, Sara Luisa; Martín Pérez, Jaime; Sebastián Reparaz, Juan; Campoy Quiles, Mariano (American Chemical Society, 2020-09-11)
Here we show that molecular doping of polymer thermoelectrics increases the electrical conductivity while reducing the thermal conductivity. A high-throughput methodology based on annealing and doping gradients within ... -
Residual alignment and its effect on weld strength in material-extrusion 3D-printing of polylactic acid
; ; ; ; Müller Sánchez, Alejandro Jesús; ; ; (Elsevier B.V, 2020-06-30)
Gaining a molecular understanding of material extrusion (MatEx) 3D printing is crucial to predicting and controlling part properties. Here we report the direct observation of distinct birefringence localised to the ... -
Room temperature synthesis of non-isocyanate polyurethanes (NIPUs) using highly reactive N-substituted 8-membered cyclic carbonates
Yuen, Alexander; Bossion, Amaury; ; Ruiperez Cillán, Fernando; Isik, Mehmet; Hedrick, James; ; Yi, Yan Yang; (RSC, 2016-02-16)
There is a growing interest to develop green synthetic pathways towards industrially relevant polymers such as polyurethanes without the use of toxic and dangerous isocyanate monomers. The most promising route towards ... -
ROP and crystallization behaviour of partially renewable triblock aromaticaliphatic copolymers derived from L-lactide
; ; ; Müller Sánchez, Alejandro Jesús; (Elsevier, 2019-10-26)
Two series of partially biobased ABA triblock copolyesters were successfully prepared by ring-opening polymerization (ROP) of L-lactide initiated by two telechelic polyester polyols using an organic catalyst. B blocks were ... -
Segmental Dynamics Govern the Cold Crystallization of Poly(lactic acid) in Nanoporous Alumina
Shi, Guangyu; Guan, Yu; Liu, Guoming; Müller Sánchez, Alejandro Jesús; Wang, Dujin (ACS Publications, 2019-09-04)
How segmental mobility influences the crystallization behavior of polymers in confined spaces is still not fully understood. In the present work, a systematic study of the segmental dynamics was carried out by dielectric ... -
Self-nucleation Effects on Polymer Crystallization
; Cavallo, Dario; Müller Sánchez, Alejandro Jesús (ACS, 2020-05-28)
The existence of a “memory” of the previous crystalline state, which survives melting and enhances re-crystallization kinetics by a self-nucleation process, is well-known in polymer crystallization studies. Despite being ... -
Sequential crystallization and multi-crystalline morphology in PE-b-PEO-b-PCL-b-PLLA tetrablock quarterpolymers
; ; ; ; ; ; ; ; Müller Sánchez, Alejandro Jesús (ACS, 2021-08-10)
We investigate for the first time the morphology and crystallization of two novel tetrablock quarterpolymers of polyethylene (PE), poly(ethylene oxide) (PEO), poly(ε-caprolactone) (PCL), and poly(L-lactide) (PLLA) with ... -
Single-ion conducting poly(ethylene oxide carbonate) as solid polymer electrolyte for lithium batteries
(Wiley, 2019-09-25)Single-ion conducting polymer electrolytes (SIPE) have attracted a lot of interest for application in high energy density lithium metal batteries. SIPEs possess lithium transport numbers close to unity, which does not ... -
Single-ion lithium conducting polymers with high ionic conductivity based on borate pendant groups
(Wiley, 2021-12-29)This communication reports a family of single-ion lithium conducting polymer electrolytes based on highly delocalized borate groups is reported. The effect of the nature of the substituents on the boron atom on the ionic ... -
Single-ion polymer/LLZO hybrid electrolytes with high lithium conductivity
(Royal Society of Chemistry, 2021-11-25)Hybrid solid electrolytes which combine the properties of inorganic and polymeric ion conductors are being investigated for lithium batteries which use lithium metal anodes. The number of inorganic/polymer compositions and ... -
Solid–Solid Crystal Transitions (δ to α) in Poly(hexamethylene carbonate) and Poly(octamethylene carbonate)
; ; ; ; ; ; Müller Sánchez, Alejandro Jesús (ACS, 2021-07-21)
Poly (hexamethylene carbonate) (PC6) and poly (octamethylene carbonate) (PC8) were studied under different crystallization conditions. Using differential scanning calorimetry (DSC), a new solid-solid transition, denoted α ... -
Structure Dependent Photostability of ITIC and ITIC-4F
Ciammaruchi, Laura; Zapata Arteaga, Osnat; Gutiérrez Fernández, Edgar; Martín Pérez, Jaime; Campoy Quiles, Mariano (Royal Society Of Chemistry, 2020-11-01)
Strong synthetic and engineering efforts have taken the efficiency of non-fullerene acceptor (NFA) based organic solar cells above 18% in a few years. Nonetheless, a deep understanding of the fundamental properties of this ... -
Suppressing Co-Crystallization of Halogenated Non-Fullerene Acceptors for Thermally Stable Ternary Solar Cells
Hultmark, Sandra; Paleti, Sri Harish Kumar; Harillo, Albert; Marina Barbier, Sara Luisa; Nugroho, Ferry Anggoro Ardy; Liu, Yanfeng; Ericsson, Leif K. E.; Li, Ruipeng; Martín Pérez, Jaime; Bergqvist, Jonas; Langhammer, Christoph; Zhang, Fengling; Yu, Liyang; Campoy Quiles, Mariano; Moons, Ellen; Baran, Derya; Mueller, Christian (Wiley, 2020-11)
While photovoltaic blends based on non-fullerene acceptors are touted for their thermal stability, this type of acceptor tends to crystallize, which can result in a gradual decrease in photovoltaic performance and affects ... -
Suppression of the Self-Nucleation Effect of Semicrystalline Polymers by Confinement
Wang, Ming; Li, Jing; Shi, Guangyu; Liu, Guoming; Müller Sánchez, Alejandro Jesús; Wang, Dujin (ACS, 2021-04-15)
The melt memory effect is well-known in polymer crystallization. It is caused by self-nuclei that persist above the melting temperature. The origin and physical nature of self-nuclei are still under debate. In this work, ... -
Sustainable Materials and Chemical Processes for Additive Manufacturing
; ; ; ; Nelson, Alshakim (ACS, 2020-08-03)
Additive manufacturing (AM) is energizing the fields of chemistry and materials science to develop new inks for new applications within fields such as aerospace, robotics, and healthcare. AM enables the fabrication of ... -
Synthesis of Redox Polymer Nanoparticles Based on Poly(vinylcatechols) and Their Electroactivity
(American Chemical Society, 2019-11-12)Organic materials are being investigated as an alternative to inorganic cathodes in lithium batteries with the promise of higher sustainability as well as increased theoretical capacity. Among organic materials, redox ...