Download or read book Synthesis and Characterization of Silicon containing Monomers Polymers and Copolymers written by Mark E. Van Dyke and published by . This book was released on 1998 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silicon Containing Copolymers written by Sahar Amiri and published by Springer. This book was released on 2014-08-11 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silicones have unique properties including thermal oxidative stability, low temperature flow, high compressibility, low surface tension, hydrophobicity and electric properties. These special properties have encouraged the exploration of alternative synthetic routes of well defined controlled microstructures of silicone copolymers, the subject of this Springer Brief. The authors explore the synthesis and characterization of notable block copolymers. Recent advances in controlled radical polymerization techniques leading to the facile synthesis of well-defined silicon based thermo reversible block copolymers are described along with atom transfer radical polymerization (ATRP), a technique utilized to develop well-defined functional thermo reversible block copolymers. The brief also focuses on Polyrotaxanes and their great potential as stimulus-responsive materials which produce poly (dimethyl siloxane) (PDMS) based thermo reversible block copolymers.
Download or read book Silicon Containing Polymers written by Richard G Jones and published by Royal Society of Chemistry. This book was released on 2023-09-08 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silicon-containing Polymers reflects the growing interest worldwide in this developing field. Silicon polymers are now finding use as moulding materials, rubbers, ceramic precursors, in lithography and reprography as photosensitive materials, as conducting polymers, and in a host of other applications. This book presents up-to-date research from all over the world. It brings together research from the forefront of a multidisciplinary subject, covering the synthesis, modification, characterization, properties and applications of polysiloxanes, polysilylenes, polysilazanes and organosilicate derivatives. Silicon-containing Polymers will be of interest to researchers and postgraduates in any area of materials science, as well as some areas of inorganic chemistry.
Download or read book Silicon Containing Polymers written by R.G. Jones and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt: BACKGROUND Polysiloxanes have chains constructed of alternately arranged silicon and oxygen atoms with organic groups attached to the silicon atoms. This structure gives them a unique combination of properties that hold great interest for a host of practical applications. Although they have been known and manufactured for many years, their applications continue to expand rapidly and this boosts progress in the generation of new and modified polysiloxanes. Polysiloxanes constitute the oldf'"' known class of silicon-based polymers and the broadest one when viewed in terms of the variety of structures differing in topology and the constitution of organic substituents. There are also many and various types of siloxane copolymers, some of purely siloxane structure and others of siloxane-organic composition. There is no doubt that polysiloxanes are the most technologically important silicon-based polymers. The broad class of model materials known as silicones is based on polysiloxanes. They are also the best known, as most research in the area of silicon polymers has for many years been directed towards the synthesis of new polysiloxanes, to understanding their properties and to extending their applications.
Download or read book Silicon Based Polymers and Materials written by Jerzy J. Chruściel and published by Walter de Gruyter GmbH & Co KG. This book was released on 2022-03-07 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silicon based materials and polymers are made of silicon containing polymers, mainly macromolecular siloxanes (silicones). This book covers the different kinds of siliconbased polymers: silicones, silsesquioxanes (POSS), and silicon-based copolymers. Other silicon containig polymers: polycarbosilanes, polysilazanes, siloxane-organic copolymers, silicon derived high-tech ceramics: silicon carbide and oxycarbide, silicon nitride, etc. have also a very important practical meaning and a hudge number of practical applications. These materials make up products in a variety of industries and products, including technical and medical applicatons. Polycrystalline silicon is the basic material for large scale photovoltaic (PV) applications as solar cells. Technical applications of crystalline (c-Si) and amorphous (a-Si) silicon (fully inorganic materials), silicon nanowires are still quickly growing, especially in the fi eld of microelectronics, optoelectronics, photonics. and photovoltaics, catalysts, and different electronic devices (e.g. sensors, thermoelectric devices). This book is ideal for researchers and as such covers the industrial perspective of using each class of silicon based materials. Discusses silanes, silane coupling agents (SCA), silica, silicates, silane modified fillers, silsesquioxanes, silicones, and other silicon polymers and copolymers for practical applications as polymeric materials and very useful ingredients in materials science.
Download or read book Silicon Based Polymers written by François Ganachaud and published by Springer Science & Business Media. This book was released on 2008-08-09 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silicon Based Polymers presents highlights in advanced research and technological innovations using macromolecular organosilicon compounds and systems, as presented in the 2007 ISPO congress. Silicon-containing materials and polymers are used all over the world and in a variety of industries, domestic products and high technology applications. Among them, silicones are certainly the most well–known, however there are still new properties discovered and preparative processes developed all the time, therefore adding to their potential. Less known, but in preparation for the future, are other silicon containing-polymers which are now close to maturity and in fact some are already available like polysilsesquioxanes and polysilanes. All these silicon based materials can adopt very different structures like chains, dendrimers, hyperbranched and networks, physical and chemical gels. The result is a vast array of materials with applications in various areas such as optics, electronics, ionic electrolytes, liquid crystals, biomaterials, ceramics and concrete, paints and coatings ... all needed to face the environmental, energetical and technological issues of today. Some industrial aspects of the applications of these materials will also be presented.
Download or read book The Synthesis and Characterization of New Silicon containing Model Compounds and Fluoroacrylic Monomers and Polymers Derived from Hexafluoroisopropanol substituted Aromatics written by William J. Weikel and published by . This book was released on 1994 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polyimides and Other High temperature Polymers written by K. L. Mittal and published by BRILL. This book was released on 2009-04-24 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: The topics covered in this proceedings volume include: Synthesis, characterization and processing (including some novel approaches) of a variety of polyimides and other high temperature polymers; structure-property relationships; segmental dynamics in polyimide materials; photoalignable polyimides; photoconductivity and photosensitivity of polyimides; ultrafiltration membranes from polyetherimide; polymer materials for nonlinear optical applications; alignment of SWNTs in rigid-rod polymer compositions; surface modification of polyimide; adhesion of Cu to polyimide surfaces; and polyimide erosion in a low Earth orbit space environment.
Download or read book Silicon Containing Hybrid Copolymers written by Chaobin He and published by John Wiley & Sons. This book was released on 2020-01-29 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combines chemistry and material science in order to provide a complete overview of the design, synthesis, and applications of organo-silica This book offers comprehensive and systematic coverage of the latest developments in functional hybrid silicon copolymers, their applications, and how they were developed in relation to previous works in the preparation of various functional groups terminated silicone materials. Silicon Containing Hybrid Copolymers begins with a chapter that introduces readers to organo-silicon materials. It then presents a chapter on reactive functionally terminated polyorganosiloxanes, and contains a section on the methods and advances of functionalized polyhedral oligomeric silsesquioxanes (POSS) and copolymers. Nanostructured self-assemblies from silicon containing hybrid copolymers are discussed?as are superhydrophobic materials derived from hybrid silicon. Other chapters examine silicone copolymers for healthcare and personal care applications; construction of organic optoelectronic materials by using polyhedral oligomeric silsesquioxanes (POSS); and 3D printing silicone materials and devices. The book also includes an overview of material toughening and fire retardancy in regards to hybrid POSS nanocomposites. This title: -Focuses on design and synthesis strategies, providing a valuable resource for researchers in academia and industry -Presents recent applications, with emphasis on the underlying strategies and the influence from previous designs, in fields such as healthcare and consumer care -Combines synthetic pathways with design specific considerations to provide the reader with greater control over the design process Silicon Containing Hybrid Copolymers is an ideal book for materials scientists, polymer chemists, and bioinorganic chemists.
Download or read book Polyimides and other high temperature polymers written by K. L. Mittal and published by VSP. This book was released on 2001-06-18 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume chronicles the proceedings of the International Symposium on Polyimides and Other High Temperature Polymers: Synthesis, Characterization and Applications, held in Newark, New Jersey, November 29 – December 1, 1999. Polyimides constitute an important class of materials because of their many desirable traits, for example: low dielectric constant, high breakdown voltage, good planarization, wear resistance, radiation resistance, inertness to solvents, good adhesion properties, good hydrolytic stability, low thermal expansion, long-term stability and excellent mechanical properties.This volume contains a total of 21 papers, all rigorously peer reviewed and revised before inclusion, addressing many aspects and new developments in polyimides and other high temperature polymers. The book is divided into two parts: “Synthesis, Properties and Bulk Characterization†and “ Interfacial or Adhesion Aspects and Applicationsâ€. The topics covered include: structure-property relationships in polyimides; photochemistry and photophysics of polyimides; thermal and UV laser pyrolyses of polyimides; residual stress evaluation in polyimides; synthesis and characterization of a variety of polyimides; high Tg polyimide; fluorinated polyimides; highly oriented polyimide films; high-temperature aromatic copolymer thermosets; shape-memory polymers; polyimides as liquid crystal alignment layers; surface properties of polyimides; metal-containing polyimides for optoelectronic applications; polyimide L-B films; polyimides coated with copper sulfide; carbon fiber/polyimide composites; and simulations of the polyimide/silica interface.This volume offers a wealth of information and represents current commentary on the R&D activity taking place in the technologically highly important field of polyimides and other high temperature polymers and is of value and interest to anyone interested in the fundamental or applied aspects of this topic.
Download or read book Synthesis and Characterization of Silicon Based Polymers for Use as Organic inorganic Hybrids and Silicon Carbide Precursors written by Alan Sellinger and published by . This book was released on 1997 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Properties of Silicones and Silicone Modified Materials written by Stephen J. Clarson and published by American Chemical Society. This book was released on 2003 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthesis and Properties of Silicones and Silicone-Modified Materials includes sections on synthesis, characterization, elastomers and reinforcement, surfaces and interfaces, copolymers, and reinforcing fillers. Synthesis and Properties of Silicones and Silicone-Modified Materials reviews recent academic and technological developments behind silicones and silicone-modified materials.
Download or read book Silicon containing Block Copolymers with Well defined Branched Architectures written by Alejandra Teresa García Marcos and published by . This book was released on 2006 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polyimides and Other High Temperature Polymers Synthesis Characterization and Applications written by Kash L. Mittal and published by CRC Press. This book was released on 2007-07-10 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is mostly based on papers presented at the Fourth International Symposium on this topic held in Savannah, Georgia. However, in addition to these papers, certain very relevant papers have also been included to broaden the scope and thus enhance the value of this book. Currently there is tremendous interest in these material because of their unique properties and applications in diverse technological areas ranging from microelectronics to aerospace to adhesive bonding. This book is divided into three parts: Part 1: Synthesis and Bulk Characterization; Part 2: Surface and Interface Aspects (Composites and Metallization); and Part 3: Applications. The topics covered include: synthesis of a number of polyimides with tailored properties; nanocomposites for high-performance applications; molecular assembly of polyimides; polyimide L-B films; metallization of polyimides; applications of high temperature polymers as proton exchange membranes; dielectrics, and in textile.
Download or read book Polyimides written by K.L. Mittal and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: This and its companion Volume 2 chronicle the proceedings of the First Technical Conference on Polyimides: Synthesis, Char acterization and Applications held under the auspices of the Mid Hudson Section of the Society of Plastics Engineers at Ellenville, New York, November 10-12, 1982. In the last decade or so there has been an accelerated interest in the use of polyimides for a variety of applications in a number of widely differing technologies. The applications of polyimides range from aerospace to microelectronics to medical field, and this is attributed to the fact that polyimides offer certain desirable traits, inter alia, high temperature stability. Polyimides are used as organic insulators, as adhesives, as coat ings, in composites, just to name a few of their uses. Even a casual search of the literature will underscore the importance of this class of materials and the high tempo of R&D activity taking place in the area of polyimides. So it was deemed that a conference on polyimides was both timely and needed. This conference was designed to provide a forum for discussion of various ramifications of polyimides, to bring together scientists and technologists interested in all aspects of polyimides and thus to provide an opportunity for cross-pollination of ideas, and to highlight areas which needed further and intensi fied R&D efforts. If the comments from the attendees are a baro meter of the success of a conference, then this event was highly successful and fulfilled amply its stated objectives.
Download or read book Synthesis and Characterization of Siloles Silole containing Polymers and Photoswitchable Polymer Brush written by Milind Dhaniram Bisen and published by . This book was released on 2015 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: In today's world, there is an increasing demand for new and efficient materials to develop future technologies, address the energy crisis, improve the health care system, and in general for the amelioration of our society. There has been substantial ongoing research effort to develop new organic materials for application in electronic devices and alternative energy such as solar cell, and to develop new biomaterials that will provide fast and efficient diagnosis and treatment of diseases. In this dissertation, we report our progress toward the development of new materials with potential for future application as organic electronics and biomaterials. The first part of this dissertation is focused on the method development and synthesis of silole-based small molecules and conjugated polymers. Silole, a silicon analogue of cyclopentadiene is a very interesting molecule due to its unique photo-physical and electronics properties, and a potential candidate for electroluminescent and photo-luminescent based applications. Although the first example of silole has been reported more than 25 year ago, the difficulty in the synthesis of functional siloles diminished the impact of their potential applications. Herein, we report an efficient and feasible synthetic method to synthesize 2,5-reactive siloles. We utilized this method to synthesize silole monomers, which will be applicable for various palladium catalyzed cross-coupling reactions. In cases where the preparation of reactively functionalized siloles were unsuccessful by our method, we were able to accomplish the synthesis in one additional step; nevertheless, our method is still advantageous compare to the other known methods. We have also synthesized silole molecules that can be further functionalized for application as fluorescent sensors. The synthesis and properties of new silole-containing conjugated polymers are described. The polymers were synthesized by the Suzuki, Sonogashira and Stille coupling polymerization. We have studied structure-property relationship of these polymers by exploring their optoelectrical properties. Co-polymers of silole with diketopyrrolopyrrole showed low band gap and low reduction potentials, which are crucial properties in developing n-type materials. We have also fabricated simple photovoltaic device to study photoconductivity, one of the silole-DPP polymer showed fairly high photoconversion efficiency but low current. Further characterization is required to study the conductivity. Silole-containing polymers were also prepared by the direct arylation reaction. The Direct Arylation reaction via C-H bond activation is emerging as a potential alternative to traditional transition metal-catalyzed cross-coupling reactions. We investigated synthetic methods to synthesize silole containing polymers via direct arylation polymerization by screening catalyst, ligand, solvent, temperature and other parameters. Our preliminary results demonstrated the successful copolymerization of 2,5-diarylhalide functionalized silole monomer with various electron accepting benzodiazole scaffolds to give alternating copolymers with low energy band gaps. However, the molecular weights were not optimal, and therefore future work is needed to optimize the reaction conditions in order to obtain higher molecular weight polymers. In the second part of this dissertation, we prepared photo-switchable polymer brush on silicon surfaces. Photoswitchable polymer brushes consisting of N-isopropylacrylamide and photoactive spiropyran moiety were synthesized by Reversible Addition-Fragmentation chain Transfer (RAFT) polymerization method. These brushes reversibly react to external light stimulus by altering their polarity, ionic charge and solubility. In our preliminary study, we have shown that charged species can be adsorbed and release by the brushes with irradiation of UV and visible light, respectively. These polymer brushes can be used for isolation of charged protein/peptides.
Download or read book Functionalized Polymers written by Narendra Pal Singh Chauhan and published by CRC Press. This book was released on 2021-05-14 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functionalized polymers are macromolecules to which chemically bound functional groups are attached which can be used as catalysts, reagents, protective groups, etc. Functionalized polymers have low cost, ease of processing and attractive features for functional organic molecules. Chemical reactions for the introduction of functional groups in polymers and the conversion of functional groups in polymers depend on different properties. Such properties are of great importance for functionalization reactions for possible applications of reactive polymers. This book deals with the synthesis and design of various functional polymers, the modification of preformed polymer backbones and their various applications.
