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Über dieses Buch

This book provides a comprehensive overview of the fundamental properties, preparation routes and applications of a novel class of organic–inorganic nanocomposites known as periodic mesoporous organosilicas (PMOs).

Mesoporous silicas are amorphous inorganic materials which have silicon and oxygen atoms in their framework with pore size ranging from 2 to 50 nm. They can be synthesized from surfactants as templates for the polycondensation of various silicon sources such as tetraalkoxysilane. In general, mesoporous silica materials possess high surface areas, tunable pore diameters, high pore volumes and well uniformly organized porosity. The stable chemical property and the variable ability for chemical modification makes them ideal for many applications such as drug carrier, sensor, separation, catalyst, and adsorbent. Among such mesoporous silicas, in 1999, three groups in Canada, Germany, and Japan independently developed a novel class of organic–inorganic nanocomposites known as periodic mesoporous organosilicas (PMOs). The organic functional groups in the frameworks of these solids allow tuning of their surface properties and modification of the bulk properties of the material.

The book discusses the properties of PMOs, their preparation, different functionalities and morphology, before going on to applications in fields such as catalysis, drug delivery, sensing, optics, electronic devices, environmental applications (gas sensing and gas adsorption), biomolecule adsorption and chromatography. The book provides fundamental understanding of PMOs and their advanced applications for general materials chemists and is an excellent guide to these promising novel materials for graduate students majoring in chemical engineering, chemistry, polymer science and materials science and engineering.

Inhaltsverzeichnis

Frontmatter

Chapter 1. Introduction

Abstract
In this chapter, general aspects of mesoporous materials and PMOs are briefly described. In particular, what are the typical technological advantages of PMOs over general mesoporous materials are discussed. They include how the mesoporous materials and/or PMOs are synthesized and what are important factors to govern their morphology and physico-chemical properties.
Chang-Sik Ha, Sung Soo Park

Chapter 2. General Synthesis and Physico-chemical Properties of Mesoporous Materials

Abstract
This chapter describes general synthetic routes of mesoporous materials, in particular, with focusing mesoporous silicas; Synthesis methods of mesoporous materials include sol-gel method, template assisted technique, liquid crystal template approach (LCTA), microwave assisted technique, and chemical etching technique. This chapter also deals with more details on the templates, basic and acidic synthesis, temperature, removal of template, nonaqueous synthesis, mesophase tailoring, morphology and modification of mesoporous silicas.
Chang-Sik Ha, Sung Soo Park

Chapter 3. Synthetic Routes and New Precursors for the Preparation of PMOs

Abstract
This chapter deals with the details of the synthesis of PMOs with what kind of precursors are used for the preparation of PMOs. Main precursors to be discussed include amorphous precursors, bis-silylate chiral precursors, metal complexes included in PMO Materials.
Chang-Sik Ha, Sung Soo Park

Chapter 4. PMOs with a Range of Morphologies

Abstract
In this chapter, we deal with PMOs with a range of morphologies including powder, monolith, hollow, and film morphology, since the morphology is one of governing factors to control final physico-chemical properties of PMOs.
Chang-Sik Ha, Sung Soo Park

Chapter 5. PMOs for Catalytic Applications

Abstract
This chapter deals with the applications of PMOs as catalysts. Various PMOs for catalysts include organic group functionalized PMO materials and metal complex functionalized PMOs, where the metals used for complex functionalization include Pd, Ru, Pt, V, Ir, Mn, Cu, Rh, Mo, Sc, Ti, Fe, Cu, Sn, ferrocene, WO42−, and bimetal complex. Also metal nanoparticles supported PMOs will be discussed.
Chang-Sik Ha, Sung Soo Park

Chapter 6. PMOs as Hosts for Drug and Biomolecules

Abstract
In this chapter, we describe PMOs as hosts for drug and biomolecules. Details include PMOs for drug delivery system, PMO as nanocarrier, hollow PMO, PMO with gatekeeper, PMOs for protein/gene delivery system, and biocompatibility of PMOs.
Chang-Sik Ha, Sung Soo Park

Chapter 7. PMOs for Adsorption

Abstract
This chapter deals with PMOs for adsorption. We discuss metal ions adsorption such as adsorption of Li+, Co2+, Hg2+, Pb2+, Cd2+, and Ag2+ ions. We also describe pollutant (organic molecules) adsorption and biomolecule adsorption such as protein, enzyme, amino acids and cell adhesion.
Chang-Sik Ha, Sung Soo Park

Chapter 8. PMOs for Separation

Abstract
In this chapter, we discuss the applications of PMOs for separation including gas separation and chromatographic phases.
Chang-Sik Ha, Sung Soo Park

Chapter 9. Electronic and Optical Applications

Abstract
This chapter deals with the electronic and optical applications of PMOs such as electronic devices, low-k PMO films, and other optical applications including light harvesting, photoluminescence, and sensing and imprinting.
Chang-Sik Ha, Sung Soo Park

Chapter 10. PMOs for Other Advanced Applications

Abstract
In this chapter, we deal with other advanced applications of PMOs such as ion exchangers, superhydrophilic antireflective coating, bioactive composites, refolding of proteins, and bioimaging.
Chang-Sik Ha, Sung Soo Park

Chapter 11. Summary and Future Outlooks

Abstract
In this chapter, we overview important aspects and points in each chapter. Also we discuss on the future of the research and applications of PMOs with suggesting future direction of R&D on the development and applications of PMOs.
Chang-Sik Ha, Sung Soo Park

Backmatter

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