Browsing OpenAire by Author "Wang, Dujin"
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Biodegradable binary blends of poly (butylene succinate) or poly (ε-caprolactone) with poly (butylene succinate-ran-ε-caprolactone) copolymers: Crystallization behavior
Safari, Maryam; Pérez Camargo, Ricardo Arpad; Ballester Bayarri, Laura; Mugica Iztueta, Miren Agurtzane; Zubitur Soroa, María Manuela; Wang, Dujin; Müller Sánchez, Alejandro Jesús ; Liu, Guoming (Elsevier, 2022-08-12)Poly (butylene succinate) (PBS) and polycaprolactone (PCL) are two immiscible biocompatible and biodegradable polymers. Aiming to combine the properties of these biodegradable polymers, this work explores for the first ... -
Confined Crystallization of Polymers within Nanopores
Crystallization of polymeric materials under nanoscopic confinement is highly relevant for nanotechnology applications. When a polymer is confined within rigid nanoporous anodic aluminum oxide (AAO) templates, the ... -
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)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 ... -
Crystallization Kinetics and Nanoparticle Ordering in Semicrystalline Polymer Nanocomposites
Altorbaq, Abdullah S.; Krauskopf, Alejandro A.; Wen, Xiangning; Pérez Camargo, Ricardo Arpad; Su, Yunlan; Wang, Dujin; Müller Sánchez, Alejandro Jesús ; Kumar, Sanat K. (Elsevier, 2022-03-13)There has been considerable interest in the nucleation and crystallization of polymers in the presence of nanoparticles (NPs, or nanofillers in general, NFs). Most of the extensive work in this area has focused on anisotropic, ... -
Crystallization of a Self-Assembling Nucleator in Poly(L-lactide) Melt
Wang, Wei; Saperdi, Angelo; Dodero, Andrea; Castellano, Maila; Müller Sánchez, Alejandro Jesús ; Dong, Xia; Wang, Dujin; Cavallo, Dario (American Chemical Society, 2021-09-01)[EN]In the present work, crystallization of a soluble nucleator N, N′, N″-tricyclohexyl-1,3,5-benzenetricarboxylamide (TMC-328) in a poly(l-lactic acid) (PLLA) matrix has been studied at different temperatures. Based on ... -
Crystallization, Orientation and Solid−Solid Crystal Transition of Polybutene‐1 Confined within Nanoporous Alumina
Wang, Zefan; Wang, Ming; Cavallo, Dario; Wang, Dujin; Liu, Guoming; Müller Sánchez, Alejandro Jesús ; Shi, Guangyu (ACS, 2020-07-31)The effect of confinement on the crystallization, crystal orientation, and polymorphic crystal transition of bulk and infiltrated polybutene-1 (PB-1) within nanoporous alumina templates (AAO) were studied. After cooling ... -
Direct Relationship between Dispersion and Crystallization Behavior in Poly(ethylene oxide)/Poly(ethylene glycol)-g-Silica Nanocomposites
Wen, Xiangning; Su, Yunlan; Liu, Guoming; Li, Shaofan; Müller Sánchez, Alejandro Jesús ; Kumar, Sanat K.; Wang, Dujin (American Chemical Society, 2021-02-08)The inclusion of polymer-grafted nanoparticles (PGNPs) can impart various functional properties to polymer nanocomposites (PNCs). For semicrystalline polymers, we can control the spatial dispersion of PGNPs and presumably ... -
Effect of Nanoconfinement on the isodimorphic crystallization of Poly(butylene succinate-ran-caprolactone) Random Copolymers
Safari, Maryam; Leon Boigues, Laia; Shi, Guangyu; Maiz, Jon; Liu, Guoming; Wang, Dujin; Mijangos, Carmen; Müller Sánchez, Alejandro Jesús (ACS, 2020-07-21)In this paper, we study for the first time the effect of hard confinement on the isodimorphic crystallization of random copolyesters. A series of poly(butylene succinate-ran-caprolactone) samples encompassing the entire ... -
Effect of the crystallization conditions on the exclusion/inclusion balance in biodegradable poly(butylene succinate-ran-butylene adipate) copolymers
Pérez Camargo, Ricardo Arpad; Liu, Guoming; Cavallo, Dario; Wang, Dujin; Müller Sánchez, Alejandro Jesús (ACS, 2020-07-14)Biomedical applications of polymers require precise control of the solid-state structure, which is of particular interest for biodegradable copolymers. In this work, we evaluated the influence of crystallization conditions ... -
Even-odd Effect in Aliphatic Polycarbonates with Different Chain Lengths: from Poly (hexamethylene carbonate) to Poly (dodecamethylene carbonate)
Pérez Camargo, Ricardo Arpad; Meabe Iturbe, Leire; Sardon Muguruza, Haritz; Liu, Guoming; Zhao, Ying; Wang, Dujin; Müller Sánchez, Alejandro Jesús (ACS, 2020-12-17)We have characterized a series of aliphatic polycarbonates synthesized by organocatalysis containing a variable number of methylene groups (nCH2) in their repeat units ranging from nCH2 = 6 to 12. The melting and crystallization ... -
Experimental and Data Fitting Guidelines for the Determination of Polymer Crystallization Kinetics
Pérez Camargo, Ricardo Arpad; Liu, Guoming; Wang, Dujin; Müller Sánchez, Alejandro Jesús (Springer Nature, 2022-05-05)The crystallization kinetics of semicrystalline polymers is often studied with isothermal experiments and analyzed by fitting the data with analytical expressions of the Avrami and Lauritzen and Hoffman (LH) theories. To ... -
Generating Triple Crystalline Superstructures in Melt Miscible PEO-b-PCL-b-PLLA Triblock Terpolymers by Controlling Thermal History and Sequential Crystallization
Palacios Gutiérrez, Jordana Karin ; Liu, Guoming; Wang, Dujin; Hadjichristidis, Nikos; Müller Sánchez, Alejandro Jesús (WILEY-VCH, 2019-09-10)The morphology, crystallization behavior and properties of multi-crystalline polymer systems based on triple crystalline biodegradable PEO-b-PCL-b-PLLA triblock terpolymers are reviewed. The triblock terpolymers, with ... -
How Confinement Affects the Nucleation, Crystallization, and Dielectric Relaxation of Poly(butylene succinate) and Poly(butylene adipate) Infiltrated within Nanoporous Alumina Templates
Safari, Maryam; Maiz, Jon; Shi, Guangyu; Juanes, Diana; Liu, Guoming; Wang, Dujin; Mijangos, Carmen; Alegría Loinaz, Angel María ; Müller Sánchez, Alejandro Jesús (ACS Publications, 2019-10-17)This work describes the successful melt infiltration of poly(butylene succinate) (PBS) and poly(butylene adipate) (PBA) within 70 nm diameter anodic aluminum oxide (AAO) templates. The infiltrated samples were characterized ... -
How cyclic chain topology can reduce the crystallization rate of Poly(3- hexylthiophene) and promote the formation of liquid crystalline phases in comparison with linear analogue chains
Maiz, Jon; Liu, Guoming; Ruiperez Cillán, Fernando; Delbosc, Nicolas; Coulembier, Olivier; Wang, Dujin; Müller Sánchez, Alejandro Jesús (Royal Society of Chemistry, 2019-06-14)We have studied how cyclic topology affects the crystallization and morphology of π-conjugated poly(3- hexylthiophene) (P3HT) molecules by comparing linear and cyclic analogues for the first time, with three different ... -
Nucleation of Poly(lactide) on the Surface of Different Fibers
Wang, Bao; Wen, Tao; Zhang, Xiuqin; Tercjak Sliwinska, Agnieszka; Dong, Xia; Müller Sánchez, Alejandro Jesús ; Wang, Dujin; Cavallo, Dario (ACS Publications, 2019-08-14)The nucleation process of poly(lactide) (PLA) on a series of fibers was studied by means of in-situ Polarized Optical Microscope (POM) during crystallization. Several synthetic and natural fibers (PLLA stereocomplex fibers ... -
Peculiar self-nucleation behavior of a polybutene-1/ethylene random copolymer
Wang, Zefan; Dong, Xia; Cavallo, Dario; Wang, Dujin; Müller Sánchez, Alejandro Jesús (Wiley, 2021-07-31)The self-nucleation behavior of a polybutene-1/ethylene random copolymer, P(B1-ran-E), which undergoes a complex crystal-crystal transition behavior, has been studied in detail. Similar to PE random copolymers, this material ... -
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 ... -
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 ... -
Solid–Solid Crystal Transitions (δ to α) in Poly(hexamethylene carbonate) and Poly(octamethylene carbonate)
Pérez Camargo, Ricardo Arpad; Liu, Guoming; Meabe Iturbe, Leire; Zhao, Ying; Sardon Muguruza, Haritz; Wang, Dujin; 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 ... -
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, ...