Polymer composites nanomaterials

The contributors of the chapters in this book have various areas of expertise. Therefore, this book is interdisciplinary and is written for readers with a background in physical science. I believe that this book will be of interest to university students, lecturers and researchers who are interested in the fields of materials science, engineering and technology and, specifically, in advanced ceramic materials, metal, polymer composite, nanomaterials, bio-materials and optical materials. As it deals with many basic concepts that are of concern in the relevant fields, this book can also be used as a primer for studies in materials science and engineering. 

The importance of defects and dopants within carbon nanomaterials during the fabrication of polymer composites... 

Polymer composites are materials which are fabricated by dispersing nanomaterials (filler) with dimensions ranging from 10 to 100 A, within a matrix that can be an organic polymer. The resulting composite significantly enhances the polymer s properties [177]. In particular, polymer composites may be divided into three families (see Chapter 8) ... 

Solvent methods are similar to in situ polymerizations. During the first stage, the nanomaterial is dispersed in a solvent. In some cases a surfactant can be used as a bridge between the nanomaterials and the matrix (Fig. 4.9). This reaction occurs in a liquid or gel form in the presence of a solvent such as toluene, chloroform, acetonitrile, water, acetone, etc. The solution of modified nanoparticles is then added to a polymeric solution under agitation (at room or elevated temperatures) in order to ensure a homogeneous dispersion of the nanomaterials in the matrix. Finally, the polymer composite... 

The addition of specific nanomaterials can result in significant changes and improvements in thermal properties of polymer composites. In the next section we review some of the principal thermal properties that are affected by introducing nanomaterials in polymer matrices in order to form composites. 

Thus, particles with a very narrow distribution were observed - in the case of a second generation dendrimer, nanoparticles with a monodisperse nucleus of 2.4 0.2 nm. It is important that not only individual dendrimers can be used for metallopolymer preparation, but also their dispersed mixtures with polymer matrices, which form new types of polymer-inorganic nanomaterials. For example, the highest poly(amidoamide) generations in water were put in swollen polymeric patterns of poly(2-hydroxyethylmethacrylate) Cu, Au or ions of a complex bound to dendrimer [90] were added to such a composition. Reduction of the metal ions resulted in new types of inorganic hybrid materials. 

Besides the intrinsic conductive polymers, some deformable polymers, such as shape-memory polymers, are usually activated by heating. After incorporating with conductive fillers, such as carbon nanomaterials, they can be simulated by the electricity through Joule heating (Liu et al., 2009 Hu and Chen, 2010 Koerner et al., 2004). This kind of electro thermally active polymer composites can produce expansion/contraction and bending behaviors upon with the electricity. Moreover, these actuators can work durably... 

Synthesis Of Polymer Composites And Carbon-based Nanomaterials In Ionic Liquids 123... 

Synthesis of Polymer Composites and Carbon-Based Nanomaterials in Ionic Liquids... 

Electrochemical Fabrication of Carbon Nanomaterial and Conducting Polymer Composites for Chemical Sensing... 

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