Nanocomposite fundamentals and applications

21-K-Ol - Zeolite-based nanocomposites synthesis, characterization and catalytic applications 

Chemistry Department, Moscow State University, bvromanovsky phys.chem.msu.ru, Russia 

The oxidative in-situ degradation of mono and polynuclear complexes of transition metals within the Y zeolite supercages has been employed to produce an array of oxide nanoclusters encapsulated in the intercrystalline voids of the matrix. The resulting materials were characterized by using a number of experimental techniques. The nanocomposites synthesized by such a way display extraordinary high activities in the model reactions of CO and MeOH oxidation. 

21-0-02 - Methods of synthesis for the encapsulation of dye molecules in molecular sieves 

Wark (a), M. Ganschow (a), Y. Rohlfing (b), G. Schulz-Ekloff (a) and D. Wohrle (b) a Institute of Applied and Physical Chemistry, University of Bremen, Germany, mwark chemie. uni-bremen. de 

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Kassiba, A., Boucle, J., Makowska-Janusik, M., Errien, N. (2007). Some fundamental and applicative properties of [polymer/nano-SiC] hybrid nanocomposites. Journal of Physics Conference Series, 79, 012002-1-012002-10. 

The development of conducting polymer (CP) nanocomposites has opened up novel fundamental and applied frontiers. The present chapter overviews recent works dealing with synthesis, characterization of CP nanocomposites, and then-applications related to biosensors. Various synthesis strategies, mechanism, and process parameters along with their characterization techniques are discussed. Some potential areas for biosensor-related applications of CP nanocomposites are highhghted, including catalytic biosensors and bioaffinity biosensors. 

Many technical challenges remain for the use of nanocomposite materials in future optical applications. These challenges cover the fundamental and experimental aspects of the research in materials, designs, and devices. The progress made in nanomaterials and nanotechnology has been encouraging and has allowed the fabrication and use of new nanostructures such as nanopartides, nanowires, nanorods, quantum dots in numerous new applications. It is expected that the... 

Polymethylsiloxane (PMS) materials with ID (PDMS) or 2D/3D (PMS) siloxane backbone have drawn considerable fundamental and technological interest because of their applications as components of nanocomposites, copolymers for synthesis of ion conducting polymeric materials, chromatographic adsorbent, a component of medicinal preparations (e.g., Cleocin, Universal Washaid, United States), implants, adjuvant Capsil (Aquatrols, USA Scotts, USA), a vaccine adjuvant, etc. Additionally, PMS in the form of hydrogel (CpMs 10 wt%) is utilized as a medicinal enterosorbent Enterosgel (Kreoma-Pharm, Ukraine). Functionalized PMSs are used for modification and functionalization of solid surfaces. They are also used as supports for catalysts, or as polymer backbones for preparation of liquid crystalline polymers. 

A great number of reviews concerning selective aspects of fullerenes and carbon nanotube (CNT) chemistry and physics have been published. The fundamentals of carbon nanostructures connected with fullerenes and CNTs were summarized by Kratschmer [150], Dresselhaus et al. [151] and Bernholc et al. [152], The electronic and structural properties of CNTs were described by Mintmre et al. [153]. An overview of the synthesis and application of CNT-polymer nanocomposites can be found in recently published reviews [154-162] and in a comprehensive review with over 250 references cited in a tabular format [158]. Recent results on electrochemical formation of polymers containing fullerenes, and studies of their... 

This book focuses on polymer nanocomposites for flammability applications and includes supporting information important to this subject. The information is divided into sections for specific topic searching, and the book is divided into three parts to help those new to the fields of materials flammability research and polymer nanocomposites theory and fundamentals, specific flame retardant systems, and current applications and future work. 

The purpose of providing a brief overview on recent reviews of nanocomposite materials that discuss synthesis, structure properties, and applications is to bring to the reader s attention the nascence of this field and justify the rare availability of degradation studies of these materials when we have only recently embarked on our journey to understanding the fundamentals about them. Nevertheless, a few examples of degradation studies of nanocomposite materials are provided with the hope of advances towards mechanistic aspects of degradation with nanomaterials components. Chrisaffis et al [56, 57] report studies on the decomposition mechanisms of syndiotactic polystyrene (sPS) nanocomposites with two different types of nano fillers multi-walled carbon nanotubes (MWCNTs) and carbon nanodiamonds (NDs). sPS is a semicrystalline polymer considered to be a... 

In this study, in order to clearly understand how the nanoplatelet degree of exfoliation and aspect ratio affect the mechanical properties, systematic investigations on a set of model polymer nanocomposites based on epoxy/a-zirconium phosphate were carried out. The model epoxy nanocomposites allow for systematic control of nanoplatelet dispersion as well as aspect ratio, thus enabling unambiguous study of fundamental structure-property relationship in polymer nanocomposites. The advantage and limitation of polymer nanocomposites for structural applications will be discussed. 

Fischer, H. (2003). Polymer nanocomposites from fundamental research to specific applications. Materials Science and Engineering C, 23, 763-772. 

Due to unprecedented mechanical, electrical and chemical properties, CNTs have been considered as an ideal material for various applications as well as for new fundamental investigations (1,2). In this review chapter, we will only discuss mechanical and electrical properties. In most composite structures, nanotubes are used as mechanical reinforcing agents or conductive fillers. This is also the case of PVA/nanotubes nanocomposites. 

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