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SAXS

Sticky ends in a self-assembling ABA triblock copolymer: the role of ureas in stimuli-responsive hydrogels

T. Shafranek, Ryan; D. Leger, Joel; Zhang, Song; Khalil, Munira; Gu, Xiaodan; Nelson, Alshakim

(Natural) polymersApplicationCharacterizationCustomer publicationsMaterialPhase analysisPolymer researchSAXSTechnique

Sticky ends in a self-assembling ABA triblock copolymer: the role of ureas in stimuli-responsive hydrogels

T. Shafranek, Ryan; D. Leger, Joel; Zhang, Song; Khalil, Munira; Gu, Xiaodan; Nelson, Alshakim

Directing polymer self-assembly through noncovalent interactions is a powerful way to control the structure and function of nanoengineered materials. Dynamic hydrogen bonds are particularly useful for materials with structures that change over time or in response to specific stimuli. In the present work, we use the supramolecular association of urea…
Unique Isodimorphism of Poly(decamethylene succinate-ran-decamethylene fumarate): Large Pseudoeutectic Region and Fantastic Crystallization/Melting Behavior

Ye, Hai-Mu; Wang, Jing; Wang, Cai-Shui; Li, Hong-Fang

(Natural) polymersApplicationCharacterizationCustomer publicationsFractal dimensionMaterialPhase analysisPolymer researchSAXSTechniqueTemperature

Unique Isodimorphism of Poly(decamethylene succinate-ran-decamethylene fumarate): Large Pseudoeutectic Region and Fantastic Crystallization/Melting Behavior

Ye, Hai-Mu; Wang, Jing; Wang, Cai-Shui; Li, Hong-Fang

Poly(decamethylene succinate-ran-decamethylene fumarate)s (PDSFs) were synthesized, and their structure and crystallization behavior were systematically studied. All polyesters possess high crystallizability irrespective of composition and display the widest pseudoeutectic region that has been reported to date. Nevertheless, both melting point– and crystallization temperature–composition…
High Performance Thermoplastic Elastomers with Biomass Lignin as Plastic Phase

Huang, Jinhao; Liu, Weifeng; Qiu, Xueqing

(Natural) polymersApplicationCharacterizationCompositesCustomer publicationsFractal dimensionMaterialPhase analysisPolymer researchSAXSTechnique

High Performance Thermoplastic Elastomers with Biomass Lignin as Plastic Phase

Huang, Jinhao; Liu, Weifeng; Qiu, Xueqing

For the first time, the coordination-based energy sacrificial bonds have been constructed in the interface between lignin and polyolefin elastomer for preparing a new class of high performance thermoplastic elastomers (TPEs) with biomass lignin as the hard plastic phase. The coordination bonds not only promoted the dispersion of lignin, but…
Anisotropic nanoparticles as templates for the crystalline structure of an injection-molded isotactic polypropylene/TiO2 nanocomposite

Zhang, Peng; Kraus, Tobias

(Natural) polymersCompositesCustomer publicationsOrientation analysisPolymer researchSAXSWAXS

Anisotropic nanoparticles as templates for the crystalline structure of an injection-molded isotactic polypropylene/TiO2 nanocomposite

Zhang, Peng; Kraus, Tobias

We study the molecular origins of anisotropy in a semicrystalline polymer nanocomposite that is caused by aligned, elongated filler nanoparticles. Our study is based on spatially resolved 2D WAXS/SAXS data that indicates the arrangement of molecules, lamellae, and filler particles in the composite. Isotactic polypropylene (IPP) samples filled with anisotropic…
Effect of high molecular weight on pore formation and various properties of microporous membrane used for lithium-ion battery separator

Xu, Guan; Ding, Lei; Wu, Tong; Xiang, Ming; Yang, Feng

(Natural) polymersCustomer publicationsPhase analysisPolymer researchSAXS

Effect of high molecular weight on pore formation and various properties of microporous membrane used for lithium-ion battery separator

Xu, Guan; Ding, Lei; Wu, Tong; Xiang, Ming; Yang, Feng

In this article, iPP cast films with high molecular weight in middle layer were prepared to investigate the effect of high molecular weight component on pore formation and mechanical strength. The results of DSC, SEM and 2D-XRD indicated that higher molecular weight and die draw ratio (DDR) would not alter…