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A new understanding of entanglements in polymers applications to rheology and processing
(2017-06-07)
In the type of research I propose, I look at polymer phusics from a different angle: I consider the statistics of a system consisting of a set of interactive conformers belonging to all the chains put together at once. The ...
Tetrel Bonds with π-Electrons Acting as Lewis Bases—Theoretical Results and Experimental Evidences
(MDPI, 2018-05-15)
MP2/aug-cc-pVTZ calculations were carried out for the ZFH(3)-B complexes (Z = C, Si, Ge, Sn and Pb; B = C2H2, C2H4, C6H6 and C5H5-; relativistic effects were taken into account for Ge, Sn and Pb elements). These calculations ...
Liquid-State and Solid-State Properties of Nanotube/Polypropylene Nanocomposites Elaborated via a Simple Procedure
(MDPI, 2013-03-06)
Non-modified Multiwalled Carbon Nanotubes (MWCNT) and polypropylene (PP) in absence of compatibilizer have been chosen to elaborate MWCNT/PP nanocomposites using a simple melt-mixing dispersing method. Calorimetry results ...
Crystallization and Stereocomplexation of PLA-mb-PBS Multi-Block Copolymers
D'Ambrosio, Rosa M.; Michell, Rose Mary; Mincheva, Rosica; Hernández, Rebeca; Mijangos, Carmen; Dubois, Philippe; Müller Sánchez, Alejandro Jesús 
(MDPI, 2017-12-22)
(MDPI, 2017-12-22)
The crystallization and morphology of PLA-mb-PBS copolymers and their corresponding stereocomplexes were studied. The effect of flexible blocks (i.e., polybutylene succinate, PBS) on the crystallization of the copolymers ...
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)
; 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 ...
Influence of chain topology (cyclic versus linear) on the nucleation and isothermal crystallization of poly(L-lactide) and poly(D-lactide)
Zaldua Carazo, Nerea; Liénard, Romain; Josse, Thomas; Zubitur Soroa, María Manuela; Mugica Iztueta, Miren Agurtzane; Iturrospe Ibarra, Amaia; Arbe Méndez, María Aranzazu; De Winter, Julien; Coulembier, Olivier; Müller Sánchez, Alejandro Jesús (American Chemical Society, 2018-02-20)
(American Chemical Society, 2018-02-20)
In this paper, ring closure click chemistry methods have been used to produce cyclic c-PLLA and c-PDLA of a number average molecular weight close to 10 kg/mol. The effects of stereochemistry of the polymer chains and their ...
Crystallization of isodimorphic aliphatic random copolyesters: pseudo-eutectic behavior and double-crystalline materials
Pérez Camargo, Ricardo Arpad; Arandia, Idoia; Safari, Maryam; Cavallo, Dario; Lotti, Nadia; Soccio, Michelina; Müller Sánchez, Alejandro Jesús (Elservier, 2018-02-28)
(Elservier, 2018-02-28)
Isodimorphic random copolyesters are intriguing polymeric materials that can crystallize in their entire composition range, despite the random distribution of comonomer units along their chains. This behavior stems from ...
Lewis Acid Properties of Tetrel Tetrafluorides—The Coincidence of the -Hole Concept with the QTAIM Approach
(MDPI, 2017-02)
Tetrel bond is analysed for a series of ZF(4) (Z = C, Si, Ge) complexes with one and two NH3 or AsH3 ligands. The MP2/aug-cc-pVTZ calculations were performed and supported by results of the Quantum Theory of Atoms in ...
Influencia de la topología de cadena y de la adición de nanocargas en la cristalización de la polilactida (PLA)
(2017-06-21)
En el presente trabajo se ha estudiado las propiedades de cristalización de nuevos materiales de PLA preparados a escala de laboratorio, que presentan una mayor velocidad de cristalización en comparación a las polilactidas ...
Correlation between Grafting Density and Confined Crystallization Behavior of Polyethylene Glycol Grafted to Silica
Wen, Xiangning; Su, Yunlan; Shui, Yudan; Zhao, Weiwei; Müller Sánchez, Alejandro Jesús ; Wang, Dujin (American Chemical Society, 2019-02-06)
; Wang, Dujin (American Chemical Society, 2019-02-06)
The interfacial interactions of polymer-nanoparticles have dramatical effects on the crystallization behavior of grafted polymers. In this study, methoxy polyethylene glycol (MPEG) (molecular weights 750, 2000 and 4000 g ...