Fu, Xiaobo; Jia, Wenxia; Li, Xiaoting; Wang, Yaming; Wang, Zhen; Liu, Chuntai; Shen, Changyu; Shao, Chunguang
Phase transitions of the rapid-compression-induced mesomorphic isotactic polypropylene under high-pressure annealing
The mesomorphic isotactic polypropylene was prepared by rapid compression instead of the common method of temperature quenching, and their phase transition under high pressure was investigated in depth by combining wide-angle X-ray diffraction, small-angle X-ray scattering, and differential scanning calorimetry techniques. It was found that annealing under pressure can promote…
Insight into shear-induced modification for improving processability of polymers: Effect of shear rate on the evolution of entanglement state
Fu, Jiaxin; Wang, Yingxiong; Shen, Kaizhi; Fu, Qiang; Zhang, Jie
Many experimental results have revealed that the re-entanglement kinetics of disentangled polymers is much slower than that predicted by tube theory. This retarded recovery of fully entangled state is of practical significance that shear-induced modification may offer a way to improve processability for a polymer by reducing viscosity. This work…
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…
Influence of Trimethylsilyl Side Groups on the Molecular Mobility and Charge Transport in Highly Permeable Glassy Polynorbornenes
Yin, Huajie; Chapala, Pavel; Bermeshev, Maxim; Pauw, Brian R.; Schönhals, Andreas; Böhning, Martin
Superglassy polymers with a large fractional free volume have emerged as novel materials with a broad range of applications, especially in the field of membrane separations. Highly permeable addition-type substituted polynorbornenes with high thermal resistance and chemical stability are among the most promising materials. The major obstacle for extending the…
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…
Dynamics of proteins confined in non-ionic bicontinuous microemulsions: a FCS study
Wrede, Oliver; Großkopf, Sören; Seidel, Thorsten; Hellweg, Thomas
In our present work we present an approach which allows one to confine proteins in structurally nearly identical bicontinuous microemulsions with systematically decreasing water domain size. It is shown that sub-diffusive behaviour occurs already at water domain sizes below 13 nm. However, above 13 nm normal diffusion is seen. Moreover,…
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…
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…
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…
Reprocessable Supramolecular Thermoplastic BAB-Type Triblock Copolymer Elastomers with Enhanced Tensile Strength and Toughness via Metal–Ligand Coordination
Wang, Wentao; Zhang, Juan; Jiang, Feng; Wang, Xuehui; Wang, Zhigang
A new strategy was proposed to enhance tensile strength, toughness, and extensibility of BAB-type reprocessable supramolecular triblock copolymer elastomers (STBCPEs) by simply incorporating 1-vinylimidazole (VI) as a minor comonomer to introduce metal–ligand coordinate bonds of minor contents into the soft matrix. Poly(n-butyl acrylate-co-1-vinylimidazole)-b-poly(isobornyl…