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(Natural) polymers Application Characteristic dimension Characterization Customer publications Material Polymer research SAXS Technique Temperature

Rheological modifiers based on supramolecular block copolymers: From weak associations to interconne

Goldansaz, Hadi; Jangizehi, Amir; Nikravan, Goolia; Verkinderen, Olivier; Goderis, Bart; Ghaffarian, Seyed Reza; van Ruymbeke, Evelyne; Ahmadi, Mostafa

Rheological modifiers based on supramolecular block copolymers: From weak associations to interconnected micelles Goldansaz, Hadi; Jangizehi, Amir; Nikravan, Goolia; Verkinderen, Olivier; Goderis, Bart; Ghaffarian, Seyed Reza; van Ruymbeke, Evelyne; Ahmadi, Mostafa The rheological spectra of poly(n-butyl acrylate) in the presence of a series of P(nBA-b-HEMA) rheology modifiers show a two-step relaxation process originating from the PnBA matrix and the self-assemblies. The HEMA segments are further grafted with strong, hydrogen bonding UPy groups, which both magnifies and slows down the relaxation of…

sergio.rodrigues@xenocs.com27 一月 2020

(Natural) polymers Application Characteristic dimension Characterization Customer publications Material Polymer research SAXS Technique Temperature

Polymer-Induced Modification of Cellulose Nanocrystal Assemblies in Aqueous Suspensions

Cohen, Neta; Ochbaum, Guy; Levi-Kalisman, Yael; Bitton, Ronit; Yerushalmi-Rozen, Rachel

Polymer-Induced Modification of Cellulose Nanocrystal Assemblies in Aqueous Suspensions Cohen, Neta; Ochbaum, Guy; Levi-Kalisman, Yael; Bitton, Ronit; Yerushalmi-Rozen, Rachel The effect of adsorbing, nonionic polymers on the phase behavior of cellulose nanocrystals (CNCs) is of interest for design and preparation of functional hybrids. CNC assembly into a chiral nematic phase (N*) was investigated in the presence of highly hydrated poly(vinyl alcohol) (HPVA), low hydrated PVA (LPVA), and poly(vinylpyrrolidone) (PVP).…

sergio.rodrigues@xenocs.com27 一月 2020

(Natural) polymers Application Characteristic dimension Characterization Customer publications Material Polymer research SAXS Technique Temperature

Highly Ordered Semiconducting Polymer Arrays for Sensitive Photodetectors

Wei, Xiao; Gao, Hanfei; Feng, Jiangang; Pi, Yueyang; Zhang, Bo; Zhai, Yu; Wen, Wen; He, Mingqian; Matthews, James R.; Wang, Hongxiang; Li, Yang; Jiang, Shimei; Jiang, Lei; Wu, Yuchen

Highly Ordered Semiconducting Polymer Arrays for Sensitive Photodetectors Wei, Xiao; Gao, Hanfei; Feng, Jiangang; Pi, Yueyang; Zhang, Bo; Zhai, Yu; Wen, Wen; He, Mingqian; Matthews, James R.; Wang, Hongxiang; Li, Yang; Jiang, Shimei; Jiang, Lei; Wu, Yuchen Semiconducting conjugated polymers possess attractive optoelectronic properties and low-cost solution processability and are inherently mechanically flexible. However, the device performance is susceptible to the fabrication methods because of the relatively weak intermolecular interaction of the polymers and their inherent conformational and energetic disorder. An efficient fabrication technique

sergio.rodrigues@xenocs.com27 一月 2020

(Natural) polymers Application Characteristic dimension Characterization Customer publications Material Polymer research SAXS Technique Temperature

Fibril Charge Affects α-Synuclein Hydrogel Rheological Properties

Pogostin, Brett H.; Linse, Sara; Olsson, Ulf

Fibril Charge Affects α-Synuclein Hydrogel Rheological Properties Pogostin, Brett H.; Linse, Sara; Olsson, Ulf In this paper, we have investigated the interactions between ?-synuclein fibrils at different pH values and how this relates to hydrogel formation and gel properties. Using a combination of rheology, small-angle X-ray scattering, Raman spectroscopy, and cryo-transmission electron microscopy (cryo-TEM) experiments, we have been able to investigate the relationship between…

sergio.rodrigues@xenocs.com27 一月 2020

(Natural) polymers Application Characteristic dimension Characterization Customer publications Material Polymer research SAXS Technique Temperature

Large Crystalline Domains and an Enhanced Exciton Diffusion Length Enable Efficient Organic Solar Ce

Zhang, Yiwei; Sajjad, Muhammad T.; Blaszczyk, Oskar; Parnell, Andrew J.; Ruseckas, Arvydas; Serrano, Luis A.; Cooke, Graeme; Samuel, Ifor D. W.

Large Crystalline Domains and an Enhanced Exciton Diffusion Length Enable Efficient Organic Solar Cells Zhang, Yiwei; Sajjad, Muhammad T.; Blaszczyk, Oskar; Parnell, Andrew J.; Ruseckas, Arvydas; Serrano, Luis A.; Cooke, Graeme; Samuel, Ifor D. W. We studied crystallinity and exciton harvesting in bulk heterojunctions of the semiconducting polymer PffBT4T-2OD and electron acceptor PC71BM that are used to make highly efficient organic solar cells. Grazing incidence wide-angle X-ray scattering shows that the size of crystalline domains of PffBT4T-2OD increases to ?18 nm in photovoltaic blends upon…

sergio.rodrigues@xenocs.com27 一月 2020

(Natural) polymers Application Characteristic dimension Characterization Customer publications Material Polymer research SAXS Technique Temperature

Overcoming the energy loss in asymmetrical non-fullerene acceptor-based polymer solar cells by halog

Fan, Qunping; Liu, Tao; Gao, Wei; Xiao, Yiqun; Wu, Jingnan; Su, Wenyan; Guo, Xia; Lu, Xinhui; Yang, Chuluo; Yan, He; Zhang, Maojie; Li, Yongfang

Overcoming the energy loss in asymmetrical non-fullerene acceptor-based polymer solar cells by halogenation of polymer donors Fan, Qunping; Liu, Tao; Gao, Wei; Xiao, Yiqun; Wu, Jingnan; Su, Wenyan; Guo, Xia; Lu, Xinhui; Yang, Chuluo; Yan, He; Zhang, Maojie; Li, Yongfang To achieve efficient polymer solar cells (PSCs), it is important to overcome the energy loss (Eloss) from the optical bandgap to the open-circuit voltage (Voc) of the device by properly matching donor/acceptor (D/A) photovoltaic materials. Here, we develop efficient PSCs based on the absorption complementary pairs of halogenated polymer donors…

sergio.rodrigues@xenocs.com27 一月 2020