Category

Material

(Natural) polymersApplicationCharacterizationCrystalline fractionCustomer publicationsMaterialPolymer researchSAXSTechnique

High-Performance Lignin-Containing Polyurethane Elastomers with Dynamic Covalent Polymer Networks

Liu, Weifeng; Fang, Chang; Wang, Shengyu; Huang, Jinhao; Qiu, Xueqing

High-performance lignin-containing polyurethane elastomers (LPUes) were successfully synthesized via partially substituting petroleum-derived polyols with depolymerized enzymatic hydrolysis lignin (DEL). The influences of DEL on the structure, thermostability, mechanical performance, and thermal reprocessability of LPUes were systematically studied. The tensile strength and toughness of PUes were…
sergio.rodrigues@xenocs.com
27 January 2020
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialRenewable energySAXSTechniqueTemperature

Ion Transport in Pendant and Backbone Polymerized Ionic Liquids

Kuray, Preeya; Noda, Takeru; Matsumoto, Atsushi; Iacob, Ciprian; Inoue, Tadashi; Hickner, Michael A.; Runt, James

Polymerized ionic liquids (PILs) are single-ion conductors in which one of the ionic species is tethered to the polymer chain while the other is free to be transported. The ionic species can either be directly incorporated into the polymeric backbone (backbone PILs) or placed as pendant groups to the chain…
sergio.rodrigues@xenocs.com
27 January 2020
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialRenewable energySAXSTechnique

Direct modification of polyketone resin for anion exchange membrane of alkaline fuel cells

Zhou, Yi-Cun; Zhou, Ling; Feng, Chang-Ping; Wu, Xiao-Tian; Bao, Rui-Ying; Liu, Zheng-Ying; Yang, Ming-Bo; Yang, Wei

A kind of side-chain type anion exchange membranes (AEMs) with high ionic conductivity and good comprehensive stability was prepared via direct modification of commercial engineering plastic polyketone with diamines through Paal-Knorr reaction and quaternization reaction. It was found that the amount of diamine can effectively tune the microphase morphology and…
sergio.rodrigues@xenocs.com
27 January 2020
(Hydro)gels(Natural) polymersApplicationCharacterizationCustomer publicationsMaterialNanoparticles & colloidsSAXSSelf-assembled materialShapeSizeTechnique

Solvent-non-solvent rapid-injection for preparing nanostructured materials from micelles to hydrogels

Lang, Chao; LaNasa, Jacob A.; Utomo, Nyalaliska; Xu, Yifan; Nelson, Melissa J.; Song, Woochul; Hickner, Michael A.; Colby, Ralph H.; Kumar, Manish; Hickey, Robert J.

Due to their distinctive molecular architecture, ABA triblock copolymers will undergo specific self-assembly processes into various nanostructures upon introduction into a B-block selective solvent. Although much of the focus in ABA triblock copolymer self-assembly has been on equilibrium nanostructures, little attention has been paid to the guiding principles of nanostructure…
sergio.rodrigues@xenocs.com
27 January 2020
ApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPorous materialRenewable energySAXSTechnique

CO2 capture with polyamine-based protic ionic liquid functionalized mesoporous silica

Zhang, Wei; Gao, Erhao; Li, Yu; Bernards, Matthew T.; He, Yi; Shi, Yao

A mesoporous silica supported polyamine-based protic ionic liquid (PIL) sorbent has been prepared by impregnating tetraethylenepentammonium nitrate onto the surface of SBA-15. This innovative hybrid adsorbent exhibits an excellent CO2 adsorption rate in the rate-controlling step of 147?×?10?3 mmol g?1 s?0.5, at least threefold better than other IL-functionalized and amine-modified…
sergio.rodrigues@xenocs.com
27 January 2020
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsGISAXSGIWAXSMaterialRenewable energySurface structure and patternsTechniqueThin films

A top-down strategy identifying molecular phase stabilizers to overcome microstructure instabilities in organic solar cells

Zhang, Chaohong; Heumueller, Thomas; Leon, Salvador; Gruber, Wolfgang; Burlafinger, Klaus; Tang, Xiaofeng; Perea, Jose D.; Wabra, Isabell; Hirsch, Andreas; Unruh, Tobias; Li, Ning; Brabec, Christoph J.

The operational stability of organic solar cells (OSCs) is the essential barrier to commercialization. Compared to thermally-induced degradation, photo-stability of OSCs is far away from being resolved. Here, we demonstrate that the thermal- and photo-degradation of metastable bulk-heterojunction OSCs are governed by the same mechanism. Understanding the fundamental principles behind…
sergio.rodrigues@xenocs.com
27 January 2020
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPolymer researchSAXSTechnique

High-Performance Organic Electrochemical Transistors Based on Conjugated Polyelectrolyte Copolymers

Schmode, Philip; Ohayon, David; Reichstein, Paul M.; Savva, Achilleas; Inal, Sahika; Thelakkat, Mukundan

A new generation of polythiophene-based polyelectrolytes is reported to address fundamental issues in organic electrochemical transistors (OECTs). In such devices, the semiconductor must be able to transport and store ions and possess simultaneously a very high electronic mobility. For this, the ion-conducting 6-(thiophen-3-yl) hexane-1-sulfonate tetramethylammonium monomer (THS–TMA+) is…
sergio.rodrigues@xenocs.com
27 January 2020
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPolymer researchTechniqueWAXS

Tuning the photoluminescence and anisotropic structure of PEDOT

Ivanko, Iryna; Pánek, Ji?í; Svoboda, Jan; Zhigunov, Alexander; Tomšík, Elena

In the current work, we study the photoluminescence and anisotropic structure of PEDOT which is obtained in the presence of ions that perturb the water structure (ions in Hofmeister series). The water content in PEDOT has been confirmed by TGA and DSC measurements. The weight loss and heat flux together…
sergio.rodrigues@xenocs.com
27 January 2020
ApplicationCharacterizationCustomer publicationsMaterialProteins & DNA/RNASAXSShapeStructural biologyTechnique

The role of disaccharides for protein–protein interactions – a SANS study

Olsson, Christoffer; Swenson, Jan

The disaccharide trehalose has shown outstanding anti-aggregation properties for proteins, which are highly important for the possibility to treat neurodegenerative diseases, such as Alzheimer’s and Huntington’s disease. However, the role and mechanism of trehalose for such stabilising effects are still largely unknown, partly because a direct structural picture of how…
sergio.rodrigues@xenocs.com
27 January 2020
ApplicationCharacterizationCustomer publicationsMaterialParticle interactionsProteins & DNA/RNASAXSStructural biologyTechnique

X-ray Scattering and Coarse-Grained Simulations for Clustering and Interactions of Monoclonal Antibodies at High Concentrations

Dear, Barton J.; Bollinger, Jonathan A.; Chowdhury, Amjad; Hung, Jessica J.; Wilks, Logan R.; Karouta, Carl A.; Ramachandran, Kishan; Shay, Tony Y.; Nieto, Maria P.; Sharma, Ayush; Cheung, Jason K.; Nykypanchuk, Dmytro; Godfrin, P. Douglas; Johnston, Keith P.; Truskett, Thomas M.

Attractive protein–protein interactions (PPI) in concentrated monoclonal antibody (mAb) solutions may lead to reversible oligomers (clusters) that impact colloidal stability and viscosity. Herein, the PPI are tuned for two mAbs via the addition of arginine (Arg), NaCl, or ZnSO4 as characterized by the structure factor (Seff(q)) with small-angle X-ray scattering…
sergio.rodrigues@xenocs.com
27 January 2020