Wu, Chunhua; Zhu, Yang; Wu, Tiantian; Wang, Lin; Yuan, Yi; Chen, Jicheng; Hu, Yaqin; Pang, Jie
Enhanced functional properties of biopolymer film incorporated with curcurmin-loaded mesoporous silica nanoparticles for food packaging
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…
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…
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…
Phase transitions of the rapid-compression-induced mesomorphic isotactic polypropylene under high-pressure annealing
Fu, Xiaobo; Jia, Wenxia; Li, Xiaoting; Wang, Yaming; Wang, Zhen; Liu, Chuntai; Shen, Changyu; Shao, Chunguang
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…
Scalable preparation of alternating block copolymer particles with inverse bicontinuous mesophases
Lv, Fei; An, Zesheng; Wu, Peiyi
Block copolymer particles with controlled morphologies play a vital role in materials science and nanotechnology. Here the authors show a scalable preparation of amphiphilic alternating block polymer particles with inverse bicontinuous mesophases via polymerization-induced…
Directed Assembly of Hierarchical Supramolecular Block Copolymers: A Strategy To Create Donor–Acceptor Charge-Transfer Stacks
Deepthi, Krishnan; Amal, Raj R. B.; Rajeev, V. R.; Unni, K. N. Narayanan; Gowd, E. Bhoje
Macromolecules, 2019, vol 52, 7, pp. 2889-2899DOI:10.1021/acs.macromol.8b02448Visit the full articleBack to the overview
Self-Assembly Investigations of Sulfonated Poly(methyl methacrylate- block -styrene) Diblock Copolymer Thin Films
Piñón-Balderrama, Claudia; Leyva-Porras, César; Olayo-Valles, Roberto; Revilla-Vázquez, Javier; Schubert, Ulrich S.; Guerrero-Sanchez, Carlos; Bonilla-Cruz, José
Poly(methyl methacrylate- block -styrene) block copolymers (BCs) of low dispersity were selectively sulfonated on the styrenic segment. Several combinations of degree of polymerization and volume fraction of each block were investigated to access different self-assembled morphologies. Thin films of the sulfonated block copolymers were prepared by spin-coating and…
Electrospun PCL-protein scaffolds coated by pyrrole plasma polymerization
Cruz, Yeyzon; Muñoz, Efrén; Gomez-Pachón, E. Y.; Morales-Corona, Juan; Olayo-Lortia, Jesús; Olayo, Roberto; Olayo-Valles, Roberto
Polymeric scaffolds prepared from polycaprolactone (PCL), PCL-collagen and PCL-elastin were prepared by electrospinning. The scaffolds were coated by plasma polymerization of pyrrole doped with iodine, to improve cellular adhesion and fibroblast proliferation. The morphology, composition, and crystalline structure of the scaffolds were characterized by scanning electron microscopy (SEM),…
Multiscale Self-Assembly of a Phenyl-Flanked Diketopyrrolopyrrole Derivative: A Solution-Processable Building Block for π-Conjugated Supramolecular Polymers
Wang, Kai; Bohra, Hassan; Gonçalves, Rui A.; Bhatnagar, Harshangda; Wu, Yingjie; Wang, Xiaochen; Wang, Zheng; Wei, Xin; Lam, Yeng Ming; Wang, Mingfeng
We report a solution-processable π-conjugated molecular building block (denoted as PhDPP) consisting of a rigid and planar core of phenyl-flanked diketopyrrolopyrrole and “soft” branched alkoxy chains that endow the solubility in a variety of organic solvents. Intermolecular hydrogen bonding in PhDPP was revealed in nonpolar solvents above a threshold of…
Extending the hydrogen storage limit in fullerene
Gaboardi, Mattia; Sarzi Amadé, Nicola; Aramini, Matteo; Milanese, Chiara; Magnani, Giacomo; Sanna, Samuele; Riccò, Mauro; Pontiroli, Daniele
Li6C60 has been chosen as the most representative system to study the hydrogenation mechanism in alkali-cluster intercalated fullerides. We present here a muon spin relaxation (?SR) experiment that hints the chance to achieve a higher storage capacity on fullerene with respect to the values suggested in literature. Moreover, a linear…