نتایج جستجو برای: nano sized coordination polymer

تعداد نتایج: 259781  

2016
Zefeng Wang Weiwei Ye Xinran Luo Zhonggang Wang

The motivation of this work is to create luminescent rare earth/polymer films with outstanding water-resistance and superhydrophobicity. Specifically, the emulsion polymerization of styrene leads to core particles. Then core-shell-structured polymer nanoparticles are synthesized by copolymerization of styrene and acrylic acid on the core surface. The coordination reaction between carboxylic gro...

2015
Nadja Förster Sonja Schmidt

A new pathway to nano-sized hollow-sphere particles from six-arm star polymers with an amphiphilic core-corona structure, synthesized in a four-step-procedure by means of reversible addition-fragmentation chain transfer (RAFT) polymerization is presented, in order to achieve more stable and versatile nano-container systems, which could be applied in the fields of drug delivery or catalyst stora...

Journal: :Journal of composites science 2023

Polymeric nanocomposites are an emerging research topic, as they improve fiber-reinforced composites’ thermo-mechanical and tribological properties. Nanomaterials electrical thermal conductivity provide excellent wear friction resistance to the polymer matrix material. In this work, a systematic study was carried out examine tensile hardness properties of carbon fiber epoxy composite comprising...

2014

The formation of organic molecular nanocrystals is a topic of great interest in the pharmaceutical industry because of the potential increase in dissolution rate and solubility of organic crystals below 1 μm and their potential use in drug products. Previous investigators have developed various methods to produce them; however, breakage, high supersaturation and high intensity mixing are often ...

Journal: :Journal of nanoscience and nanotechnology 2011
Erdan Chen Beidou Guo Baohong Zhang Li-Hua Gan Jian Ru Gong

Chiral Zn(II)/D-,L-phenylalanine (Phe) bio-coordination polymer nanofibers with fluorescence were prepared by fast coordination-assisted assembly. The synthetic strategy is based on the fact that the Zn2+ ions were linked to oxygen atoms from carboxylate groups of the D- or L-amino acid by coordination interactions to form the chiral polymers. The Zn(II)/D-,L-Phe nanofibers had homogeneous diam...

2016
Cédric Gaillard Yunhui Wang Rudy Covis Thomas Vives Maud Benoit Thierry Benvegnu

This article contains data on the Laser Scanning Confocal Microscopy (LSCM) and Transmission Electron Microscopy (TEM) images related to multi-scaled self-assemblies resulting from 'green' cationic glycine betaine surfactant/anionic kappa-carrageenan interactions. These data gave clear evidence of the evolution of the micron-, nano-sized structures obtained at two surfactant/polymer molar ratio...

Journal: :journal of chemical health risks 0
mehrzad sarabi department of biology, neyshabur branch, islamic azad university, neyshabur, iran akbar safipour afshar department of biology, neyshabur branch, islamic azad university, neyshabur, iran homa mahmoodzadeh department of biology, mashhad branch, islamic azad university, mashhad, iran

in this study, the effects of different concentrations of bulk and nano-sized ag on seed germination and seedling growth of canola were investigated in a randomized completely design with four replications. the experimental treatments included four concentrations of bulk agno 3 (10, 100, 500 and 1000 ppm), four concentrations of nanosized ag (10, 100, 500 and 1000 ppm), and the control without ...

2010
F. W. Starr S. K. Kumar P. Cassagnau A. J. Lesser J. Jancar

The understanding of the basic physical relationships between nano-scale structural variables and the macroscale properties of polymer nanocomposites remains in its infancy. The primary objective of this article is to ascertain the state of the art regarding the understanding and prediction of the macroscale properties of polymers reinforced with nanometer-sized solid inclusions over a wide tem...

2016
Qiqi PENG Wei CAO Wentao ZHOU Zhongqi HE Wei JIANG Wanghua CHEN Q. Peng W. Cao W. Zhou Z. He W. Jiang W. Chen

The electrostatic hazards of nitramine explosives (RDX, HMX) were assessed in this paper. The resistivities of different particle-size RDX and HMX were tested by a device designed and manufactured according to the standard ISO/ IEC 80079-20-2:2016. This work shows that the resistivities of uncompacted RDX and HMX increase as the particle size decreases. Charging characteristics test experiments...

Journal: :Science and technology of advanced materials 2010
Ian O Smith Peter X Ma

Regenerative medicine is an exciting field that aims to create regenerative alternatives to harvest tissues for transplantation. In this approach, the delivery of cells and biological molecules plays a central role. The scaffold (synthetic temporary extracellular matrix) delivers cells to the regenerative site and provides three-dimensional environments for the cells. To fulfil these functions,...

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