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(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsLiquid crystalsMaterialPhase analysisPolymer researchSAXSSelf-assembled materialTechniqueTemperature

Self-assembly of a silicon-containing side-chain liquid crystalline block copolymer in bulk and in thin films: kinetic pathway of a cylinder to sphere transition

Liao, Fen; Shi, Ling-Ying; Cheng, Li-Chen; Lee, Sangho; Ran, Rong; Yager, Kevin G.; Ross, Caroline A.

The self-assembly of a high-? silicon-containing side-chain liquid crystalline block copolymer (LC BCP) in bulk and in thin films is reported, and the structural transition process from the hexagonally packed cylinder (HEX) to the body-centered cubic structure (BCC) in thin films was examined by both reciprocal and real space experimental…
(Natural) polymersApplicationCharacterizationCrystalline fractionCustomer publicationsMaterialPolymer researchPorous materialSAXSTechnique

Kinetics-controlled synthesis of hierarchically porous materials with tunable properties from diverse building blocks

Xie, Lei; Wang, Zhe; Liu, Jinrong; Gong, Yutong; Mao, Shanjun; Lü, Guofeng; Ma, Xiao; Yu, Lili; Wang, Yong

The easy hydrothermal method is a potential candidate for the preparation of carbohydrate-derived hierarchically porous polymers (HPPs) and carbons (HPCs). However, owing to the uncontrolled reaction rate and the weak affinity between precursors and soft templates, the synthesis of HPPs and HPCs with tunable properties through this method remains a…
(Natural) polymersApplicationCharacterizationCustomer publicationsMaterialNanoparticles & colloidsPhase analysisPorous materialSAXSSelf-assembled materialTechnique

Shape and phase controlled synthesis of mesostructured carbon single crystals through mesoscale self-assembly of reactive monomicelles and their unprecedented exfoliation into single-layered carbon nanoribbons

Wang, Tianping; Sun, Yanbin; Wu, Jiali; Liu, Xiangyang; Pan, Ruping; Liu, Xikui

The formation of mesostructured polymer and carbon single-crystals is very difficult due to increased complexity of the energy hypersurface and the role of slowed-down kinetics. Here we reported the synthesis of ordered mesostructured phloroglucinol-formaldehyde single crystals through mesoscale self-assembly of reactive monomicelles under acidic conditions which were traditionally thought very…
(Natural) polymersApplicationCharacterizationCustomer publicationsInorganic materialInorganic materialsMaterialSAXSSizeTechnique

Unprecedented Halide-Ion Binding and Catalytic Activity of Nanoscale Anionic Metal Oxide Clusters

She, Shan; Li, Mu; Li, Qi; Huang, Zehuan; Wei, Yongge; Yin, Panchao

One halide ion (X?) can bind on the surface of nanoscale Anderson-type polyoxometalate (POMs) clusters 3AlMo6O18(OH)3, and form stable complexes in solution with binding constant K=1.53×103. Single-crystal structural analysis showed that this binding behavior occurs through multiple hydrogen bonding between X? and three hydroxy groups on the uncapped side of…
(Natural) polymersApplicationCharacterizationCustomer publicationsMaterialPhase analysisPolymer researchSAXSSelf-assembled materialTechniqueTemperature

Identification of a Frank-Kasper Z phase from shape amphiphile self-assembly

Su, Zebin; Hsu, Chih-Hao; Gong, Zihao; Feng, Xueyan; Huang, Jiahao; Zhang, Ruimeng; Wang, Yu; Mao, Jialin; Wesdemiotis, Chrys; Li, Tao; Seifert, Soenke; Zhang, Wei; Aida, Takuzo; Huang, Mingjun; Cheng, Stephen Z. D.

Frank–Kasper phases, a family of ordered structures formed from particles with spherical motifs, are found in a host of materials, such as metal alloys, inorganic colloids and various types of soft matter. All the experimentally observed Frank–Kasper phases can be constructed from the basic units of three fundamental structures called…
(Natural) polymersApplicationCharacterizationCompositesCrystalline fractionCustomer publicationsMaterialPhase analysisPolymer researchSAXSTechniqueWAXS

Effects of an ionic liquid and processing conditions on the ?-polymorph crystal formation in poly(vinylidene fluoride)

Pickford, Tom; Gu, Xu; L. Heeley, Ellen; Wan, Chaoying

The piezoelectric properties of poly?vinylidene fluoride) (PVDF) are determined by the prevalence and orientation of its polar ?-crystal phase, which can be tuned by processing conditions, additives, mechanical stretching or post-treatment. Here, the effects of three types of processing conditions on the crystalline structure evolution of PVDF were investigated; electrospinning,…
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPolymer researchSAXSTechnique

Supramolecular luminescent triblock copolymer thermoplastic elastomer via metal-ligand coordination

Jiang, Feng; Zhang, Xin; Hwang, Wonseok; Briber, Robert M.; Fang, Yanxiong; Wang, Howard

We have performed synthesis and testing of novel supramolecular thermoplastic elastomers (TPEs). The polymers incorporate metal-ligand bonds between terbium (Tb3+) ions and imidazole groups in a triblock copolymer poly(isobornyl acrylate)-block-poly(n-butyl acrylate-co-1-vinylimidazole)-block-poly(isobornyl acrylate) (PIBA-b-P(BA-co-VI)-b-PIBA) as a second reversible physical cross-link in…
(Natural) polymersApplicationCharacterizationCustomer publicationsGIWAXSMaterialOrientation analysisPolymer researchSurface structure and patternsTechniqueThin films

Synthesis and Solid-State Properties of PolyC3 (Co)polymers Containing (CH2–CH2–C(COOR)2) Repeat Units with Densely Packed Fluorocarbon Lateral Chains

Illy, Nicolas; Urayeneza, Deogratias; Maryasevskaya, Alina V.; Michely, Laurent; Boileau, Sylvie; Brissault, Blandine; Bersenev, Egor A.; Anokhin, Denis V.; Ivanov, Dimitri A.; Penelle, Jacques

The synthesis and structural characterization of linear PolyC3 polymers containing trimethylene-1,1-dicarboxylate structural repeat units with C6F13 and C8F17 fluorinated side chains is described for the first time, and their properties were compared with the traditional polyvinyl structures that display the fluorinated chain on every second rather than on every third…
ApplicationCharacterizationCustomer publicationsFoodFood scienceGIWAXSLipidsMaterialPhase analysisSAXSSurface structure and patternsTechniqueWAXS

Physical Chemical Properties of Shea/Cocoa Butter Blends and their Potential for Chocolate Manufacture

Rodriguez?Negrette, Ana Carolina; Huck-Iriart, Cristián; Herrera, María Lidia

Cocoa butter (CB) is the preferred fat for chocolates and confections. However, for technological and economic reasons, there have been strong efforts for partially replacing it. As shea butter (SB) has become an important natural source of symmetrical stearic-rich triacylglycerols (TAG), the aim of this work was to study physical…
ApplicationCharacteristic dimensionCharacterizationCompositesCustomer publicationsInorganic materialMaterialOtherParticle size and size distributionPorous materialSAXSSpecific surfaceTechniqueWAXS

TiO2-carbon nanoporous composites prepared via ZnO nanoparticle-templated carbonization of glucose adsorb and photodegrade organic pollutants in water

Barrera, Luis A.; Escobosa, Alma C.; Nevarez, Aileen; Dominguez, Noemi; Bañuelos, Jose L.; Westerhoff, Paul; Noveron, Juan C.

We report the ZnO nanoparticle-templated formation of nanoporous carbon (NTC) embedded with TiO2 nanoparticles for the adsorption and photodegradation of organic pollutants in water. Small-angle X-ray scattering (SAXS) studies indicate that NTC and NTC-TiO2 exhibit two types of porosities with average pore diameters of 2.8 and 11.5?nm, while Brunauer-Emmet-Teller (BET)…