Browsing Artículos by Author "Wang, Dujin"
Now showing items 21-29 of 29
-
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, ... -
The effect of initial molecular weight on the structural evolution of Polyamide 1012 during high-temperature thermal treatments as revealed by Successive Self-Nucleation and Annealing
Li, Xuan; Li, Xueting; Wang, Yu; Zhu, Ping; Wang, Dujin; Müller Sánchez, Alejandro Jesús; Dong, Xia (ACS, 2022-08-24)
Successive self-nucleation and annealing (SSA) can thermally fractionate semi-crystalline polymers, thus detecting the characteristic structural features that lead to specific melting point distributions (corresponding to ... -
The origin of memory effects in the crystallization of polyamides: Role of hydrogen bonding
Liu, Xinran; Wang, Yu; Wang, Zefan; Cavallo, Dario; Müller Sánchez, Alejandro Jesús; Zhu, Ping; Zhao, Ying; Dong, Xia; Wang, Dujin (Elsevier, 2019-12-23)
The effect of hydrogen bonding stability on the memory effects in the crystallization of long chain polyamides have been investigated by the self-nucleation calorimetric technique. Self-nucleation is characterized by three ... -
Unexpected structural properties in the saturation region of the odd-even effects in aliphatic polyethers: Influence of crystallization conditions
Flores, Irma; Pérez Camargo, Ricardo Arpad; Gabirondo Amenabar, Elena; Caputo, Maria Rosaria; Liu, Guoming; Wang, Dujin; Sardon Muguruza, Haritz; Müller Sánchez, Alejandro Jesús(ACS, 2022-01-04)
A series of aliphatic polyethers with different chain lengths (nCH2= 6 to 12, and 16) is studied employing differential scanning calorimetry and X-rays scattering. The calorimetric and structural behavior of samples ... -
Uniaxial and Mixed Orientations of Poly(ethylene oxide) in Nanoporous Alumina Studied by X-ray Pole Figure Analysis
Su, Cui; Shi, Guangyu; Li, Xiaolu; Zhang, Xiuqin; Müller Sánchez, Alejandro Jesús; Wang, Dujin; Liu, Guoming (American Chemical Society, 2018-11-16)
The orientation of polymers under confinement is a basic, yet not fully understood phenomenon. In this work, the texture of poly(ethylene oxide) (PEO) infiltrated in nanoporous anodic alumina oxide (AAO) templates was ... -
Using Successive Self-nucleation and Annealing (SSA) to detect the solid-solid transitions in poly (hexamethylene carbonate) and poly (octamethylene carbonate)
Pérez Camargo, Ricardo Arpad; Liu, Guoming; Meabe Iturbe, Leire; Zhao, Ying; Sardon Muguruza, Haritz; Müller Sánchez, Alejandro Jesús; Wang, Dujin (ACS, 2021-10-26)
Solid-solid transitions in poly (hexamethylene carbonate) (PC6) and poly (octamethylene carbonate) (PC8), denoted δ to α transition, have been investigated, using self-nucleation and Successive Self-nucleation and Annealing ...