Category

(Natural) polymers

(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPhase analysisPolymer researchSAXSTechniqueTemperatureWAXS

De-symmetrizing periodically grafted amphiphilic copolymers: design, synthesis and generation of Janus folded chains

Sarkar, Ramkrishna; Gowd, E. Bhoje; Ramakrishnan, S.

Periodically grafted amphiphilic copolymers (PGACs) were earlier shown to fold in a zigzag fashion to enable segregation of the two immiscible segments, namely the backbone and the pendant segments; crystallization of one or both segments led to the formation of a lamellar structure with the two segments located in alternate…
sergio.rodrigues@xenocs.com
25 November 2019
(Natural) polymersApplicationCharacterizationCustomer publicationsFood scienceMaterialPhase analysisPolymer researchPorous materialSAXSTechnique

Enhanced functional properties of biopolymer film incorporated with curcurmin-loaded mesoporous silica nanoparticles for food packaging

Wu, Chunhua; Zhu, Yang; Wu, Tiantian; Wang, Lin; Yuan, Yi; Chen, Jicheng; Hu, Yaqin; Pang, Jie

Curcumin loaded mesoporous silica nanoparticle (SBA-15) was incorporated into chitosan (CS) film to improve the functional properties of pure CS film. Curcumin was loaded into SBA-15 (SBA-15-Cur) through a rotavapor method. The structural properties of SBA-15-Cur were characterised in detail by small-angle X-ray scattering, fourier transform-infrared (FT-IR) spectroscopy, transmission electron…
sergio.rodrigues@xenocs.com
25 November 2019
(Natural) polymersApplicationCharacterizationCompositesCustomer publicationsMaterialPhase analysisPolymer researchTechniqueWAXS

Sustainable in Situ Approach to Covalently Functionalize Graphene Oxide with POSS Molecules Possessing Extremely Low Dielectric Behavior

Joseph, Angel Mary; Nagendra, Baku; Surendran, K. P.; Gowd, E. Bhoje

Incorporation of multifunctional inorganic additives into the commercial polymers still stands as the most captivating and effective way to realize new-generation electronic components. Here, we introduce a simple, cost-effective, and environmentally benign method to covalently functionalize graphene oxide (GO) with vinyl- and aminopropyl-functionalized hybrid silica spheres with a polyhedral…
sergio.rodrigues@xenocs.com
25 November 2019
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPolymer researchSAXSTechnique

Rich lamellar crystal baklava-structured PZT/PVDF piezoelectric sensor toward individual table tennis training

Tian, Guo; Deng, Weili; Gao, Yuyu; Xiong, Da; Yan, Cheng; He, Xuebing; Yang, Tao; Jin, Long; Chu, Xiang; Zhang, Haitao; Yan, Wei; Yang, Weiqing

Real-time monitoring of interaction between ball and racket can provide the extremely important information for high quality guidance of individual table tennis training. However, the existing visual monitoring system is hard to reflect the specific interaction force and accurate hit position. Here, we design a self-powered rich lamellar crystal baklava-structured…
sergio.rodrigues@xenocs.com
25 November 2019
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCompositesCrystalline fractionCustomer publicationsMaterialRenewable energySAXSTechniqueWAXS

A high-performance BaTiO 3 -grafted-GO-laden poly(ethylene oxide)-based membrane as an electrolyte for all-solid lithium-batteries

Angulakshmi, N.; Prasanna Kar, Goutam; Bose, Suryasarathi; Bhoje Gowd, E.; Thomas, Sabu; Manuel Stephan, A.

Nanocomposite polymer electrolytes (NCPEs) comprising poly(ethylene oxide) (PEO), barium titanate-grafted-graphene oxide (BaTiO3-g-GO) and lithium bis(trifluoromethanesulfonyl imide) (LiTFSI) were prepared by a simple hot-press technique. An increase of two orders of magnitude in the ionic conductivity was achieved upon incorporation of BaTiO3-g-GO in the polymeric matrix even at 0 °C. The…
sergio.rodrigues@xenocs.com
4 November 2019
(Natural) polymersApplicationCharacterizationCustomer publicationsFibersMaterialOrientation analysisPolymer researchTechniqueWAXS

Tuning the properties of electrospun polylactide mats by ethanol treatment

Pavlova, Elizaveta R.; Bagrov, Dmitry V.; Monakhova, Kristina Z.; Piryazev, Alexey A.; Sokolova, Anastasia I.; Ivanov, Dimitri A.; Klinov, Dmitry V.

In the present work, we analyzed the changes in structure and mechanical properties of electrospun PLA mats induced by ethanol treatment. The amorphous PLA mats gained elasticity when immersed into ethanol (the elongation at break increased from ?~50% in air to ?~280% in ethanol) and partly retained it after drying…
sergio.rodrigues@xenocs.com
21 October 2019
(Natural) polymersApplicationCharacterizationCrystalline fractionCustomer publicationsMaterialPhase analysisPolymer researchSAXSTechniqueTemperatureWAXS

Simultaneous SAXS-WAXS Experiments on Semi-Crystalline Polymers: Example of PA11 and Its Brill Transition

Tencé-Girault, Sylvie; Lebreton, Sylvie; Bunau, Oana; Dang, Patrick; Bargain, François

This manuscript of the special issue “Microstructural Evolution and Mechanical Behavior of Semi-Crystalline Polymers” aims to show that Small Angle X-ray Scattering (SAXS) and Wide Angle X-ray Scattering (WAXS) experiments performed simultaneously constitute a unique tool to obtain valuable information on the hierarchical structure of semi-crystalline polymers. These structural quantitative…
sergio.rodrigues@xenocs.com
18 July 2019
(Natural) polymersApplicationCharacterizationCustomer publicationsMaterialOrientation analysisPolymer researchSAXSTechniqueTensile

Formation and evolution of shish-kebab structure during hot stretching in gel-spun ultra-high molecular weight polyethylene fibers with high concentration gel solution

An, Minfang; Lv, You; Xu, Haojun; Li, Yiguo; Wang, Zongbao

Formation and evolution of shish‐kebab crystals of gel‐spun ultra‐high molecular weight polyethylene fibers from high concentration gel solution during hot‐stretching process were studied by in situ small‐angle X‐ray scattering and wide‐angle X‐ray diffraction measurements, differential scanning calorimetry, and scanning electron microscopy. We show that the structural evolution process can be…
sergio.rodrigues@xenocs.com
18 July 2019
(Natural) polymersApplicationCharacterizationCustomer publicationsGIWAXSMaterialOrientation analysisOtherRenewable energyTechnique

An inverted planar solar cell with 13% efficiency and a sensitive visible light detector based on orientation regulated 2D perovskites

Lian, Xiaomei; Chen, Jiehuan; Fu, Ruilin; Lau, Tsz-Ki; Zhang, Yingzhu; Wu, Gang; Lu, Xinhui; Fang, Yanjun; Yang, Deren; Chen, Hongzheng

Improving the film quality is of great importance in promoting the power conversion efficiency (PCE) of 2D perovskite-based solar cells (PVSCs), but the solution to this issue is limited. In this work, a strategy of combining the advantages of the ammonium thiocyanate (NH4SCN) additive and merged annealing (MA) process was…
sergio.rodrigues@xenocs.com
18 July 2019
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPolymer researchSAXSTechnique

High-Efficiency Construction of CO2-Based Healable Thermoplastic Elastomers via a Tandem Synthetic Strategy

Yang, Guan-Wen; Wu, Guang-Peng

The alternating copolymerization of CO2/epoxides to polycarbonates (CO2–PCs) has been an area of research focus because of the growing concern about energy and the environment. Regardless of the enormous progress that has been made, the lack of functionalities and inert chemical structure of CO2-based polycarbonates greatly limit the scope of…
sergio.rodrigues@xenocs.com
18 July 2019