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Orientation analysis

A diketopyrrolopyrrole-based macrocyclic conjugated molecule for organic electronics

Li, Cheng; Wang, Chao; Guo, Yiting; Jin, Yingzhi; Yao, Nannan; Wu, Yonggang; Zhang, Fengling; Li, Weiwei

(Natural) polymersApplicationCharacterizationCustomer publicationsGIWAXSMaterialOrientation analysisPhase analysisRenewable energySurface structure and patternsTechnique

A diketopyrrolopyrrole-based macrocyclic conjugated molecule for organic electronics

Li, Cheng; Wang, Chao; Guo, Yiting; Jin, Yingzhi; Yao, Nannan; Wu, Yonggang; Zhang, Fengling; Li, Weiwei

The first diketopyrrolopyrrole based donor–acceptor macrocyclic conjugated molecule was developed and its application in organic electronics was systematically studied. , In this work, the first diketopyrrolopyrrole (DPP) based donor–acceptor macrocyclic conjugated molecule was developed and its application in organic electronics was systematically studied. Macrocyclic…
Improved thermal conductivity of thermoplastic polyurethane via aligned boron nitride platelets assisted by 3D printing

Liu, Junchao; Li, Weiwei; Guo, Yufeng; Zhang, Hui; Zhang, Zhong

ApplicationCharacterizationCompositesCustomer publicationsMaterialOrientation analysisPolymer researchSAXSTechnique

Improved thermal conductivity of thermoplastic polyurethane via aligned boron nitride platelets assisted by 3D printing

Liu, Junchao; Li, Weiwei; Guo, Yufeng; Zhang, Hui; Zhang, Zhong

Thermal management is of importance to microelectronics. Owning both excellent thermal conduction and electrical insulation, hexagonal boron nitride (hBN) platelets are widely used in polymer matrices. While the thermal properties rely on the orientation of hBN platelets in polymer matrices significantly. Herein, we report that high thermal conductive hBN filled…
Effect of solvent-matrix interactions on structures and mechanical properties of micelle-crosslinked gels

Xu, Dan; Xu, Ting; Gao, Guorong; Xiao, Ying; Wang, Zongbao; Chen, Jing; Zhou, Yang; Wang, Rong; Yin, Jingbo; Fu, Jun

(Hydro)gelsApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialOrientation analysisPolymer researchSAXSTechniqueTensile

Effect of solvent-matrix interactions on structures and mechanical properties of micelle-crosslinked gels

Xu, Dan; Xu, Ting; Gao, Guorong; Xiao, Ying; Wang, Zongbao; Chen, Jing; Zhou, Yang; Wang, Rong; Yin, Jingbo; Fu, Jun

Previous studies on hydrogels crosslinked by acrylated PEO99–PPO65–PEO99 triblock copolymer (F127DA) micelles demonstrate outstanding strength and toughness, which is attributed to the efficient energy dissipation through the hydrophobic association in the micelles. The current study further focuses on how the solvent property affects the structures and the mechanical properties of…
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

(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…
The role of fast and slow processes in the formation of structure and properties of thermoplastic polyurethanes

Anokhin, D. V.; Gorbunova, M. A.; Estrin, Ya I.; Komratova, V. V.; Badamshina, E. R.

(Natural) polymersApplicationCharacterizationCustomer publicationsMaterialOrientation analysisPhase analysisPolymer researchSAXSTechnique

The role of fast and slow processes in the formation of structure and properties of thermoplastic polyurethanes

Anokhin, D. V.; Gorbunova, M. A.; Estrin, Ya I.; Komratova, V. V.; Badamshina, E. R.

New multi-blocked thermoplastic polymers containing rigid polyurethane-urea and soft polydiethylene glycol adipate blocks have been synthesized. Basic features of their structure formation have been revealed. Three types of supramolecular organization have been found, which define the behavior of samples under heating and deformation conditions. The shape memory effect has been…
Cavitation-enabled rapid and tunable evolution of high-χN micelles as templates for ordered mesoporous oxides

Lokupitiya, Hasala N.; Stefik, Morgan

(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsGISAXSGIWAXSMaterialOrientation analysisPolymer researchSizeTechniqueThin films

Cavitation-enabled rapid and tunable evolution of high-χN micelles as templates for ordered mesoporous oxides

Lokupitiya, Hasala N.; Stefik, Morgan

The kinetic-entrapment of block copolymer micelles enables size-persistence, however tuning micelle sizes under such conditions remains challenging. Agitation-induced chain exchange via vortexing is limited by the production of solution–air interfaces. Here, we use ultrasonic cavitation for rapid interface production that accelerates micelle growth by an order of magnitude over…