Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download Studies Directed Towards The Synthesis Of Polythiophene Based Graft Copolymers full books in PDF, epub, and Kindle. Read online Studies Directed Towards The Synthesis Of Polythiophene Based Graft Copolymers ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author : Jack Koussa
Publisher :
ISBN 13 :
Total Pages : 110 pages
Book Rating : 4.:/5 (56 download)
Download or read book Studies Directed Towards the Synthesis of Polythiophene-based Graft Copolymers written by Jack Koussa and published by . This book was released on 2002 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Vijay Kumar Thakur
Publisher : CRC Press
ISBN 13 : 1482242486
Total Pages : 622 pages
Book Rating : 4.4/5 (822 download)
Download or read book Cellulose-Based Graft Copolymers written by Vijay Kumar Thakur and published by CRC Press. This book was released on 2015-04-23 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cellulose-Based Graft Copolymers: Structure and Chemistry discusses the synthesis, characterization, and properties of multifunctional cellulose-based graft copolymers. Presenting the contributions of accomplished experts in the field of natural cellulosic polymers, this authoritative text: Offers an overview of cutting-edge technical accomplishmen
Author : Kyungseok Oh
Publisher :
ISBN 13 : 9780549983279
Total Pages : 276 pages
Book Rating : 4.9/5 (832 download)
Download or read book Synthesis and Studies of Polycarbosilane-based Graft Copolymers written by Kyungseok Oh and published by . This book was released on 2008 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David W. Flanagan
Publisher :
ISBN 13 :
Total Pages : 378 pages
Book Rating : 4.:/5 (584 download)
Download or read book Solid Phase Synthesis of Graft Copolymers of Poly(thiophene)s and Peptides Containing 3-thienylalanine written by David W. Flanagan and published by . This book was released on 2004 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Raymond John Ceresa
Publisher :
ISBN 13 : 9781258547226
Total Pages : 216 pages
Book Rating : 4.5/5 (472 download)
Download or read book Block and Graft Copolymers written by Raymond John Ceresa and published by . This book was released on 2013-02 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David J.Fisher
Publisher : Materials Research Forum LLC
ISBN 13 : 1644902753
Total Pages : 145 pages
Book Rating : 4.6/5 (449 download)
Download or read book Directed Synthesis written by David J.Fisher and published by Materials Research Forum LLC. This book was released on 2023-11-05 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structure-directed synthesis aims at the design and preparation of novel solid-state structures; using the structure-directing capability of some molecular additive, the so-called structure-directing agent. This general train of thought has led to the development of many weird and wonderful strategies. The book presents an in-depth review of the field and discusses the potential for further developments. Some of the topics are listed under ‘Keywords’. The book references 343 original resources with their direct web links for in-depth reading. Keywords: Directed Synthesis, Multicomponent Colloidal Nanostructures, Nanoparticle-Seed Surfaces, Photocatalytic and Photo-Electrochemical Applications, Synthesis of Nanostructured Metal Oxides and Metal Oxalates, Wide-Bandgap Semiconductors and Metals with Surface Plasmon-Resonance Active Bands, Mesoporous Materials Possessing Multilevel Architectures, Spatially Distinct Nanostructured Organic and Inorganic Arrays, 2- and 3-Dimensional Periodic Composite Structures, Protein-Protein Interaction and DNA Hybridization, Polynuclear Complexes and Coordination Polymers of 3d Metals, Ultra-Small Metal Nanoclusters, Biomolecule-Nanocluster Composites, Nanostructured Sulphur-Carbon Nanotube Cathode.
Author : Sophie Nguyen
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (891 download)
Download or read book Synthesis of Graft Copolymers Based on Poly(R-3-hydroxybutyrate) for Orthopaedic Surgery Purposes written by Sophie Nguyen and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Graft copolymers using biodegradable and biocompatible bacterial poly([ R]-3-hydroxybutyrate) blocks were synthesized and tested as biomaterial candidates for orthopaedic surgery applications. Low molecular weight poly([ R]-3-hydroxyalkanoates), namely poly([R]-3-hydroxybutyrate), poly([R]-3-hydroxyvalerate), and their copolymers poly([ R]-3-hydroxybutyrate-co-[R]-3-hydroxyvalerate), were prepared by thermal degradation in the melt at 190°C. The chemical composition of the oligomers was well-defined, featuring the same repeat unit as their high molecular weight analogues, a carboxylic acid end, and an alkenyl end mostly in the trans configuration (crotonate-type). Increase in the reaction temperature, time, or [R]-3-hydroxyvalerate content decreased the molecular weight of the products. Methacrylic macromonomers of PHB were obtained by functionalization of the oligomers at the carboxyl end, and copolymerized with methyl methacrylate. Two free radical polymerization methods were employed: conventional free radical and a controlled free radical polymerization, Atom Transfer Radical Polymerization. Kinetics of the copolymerizations were studied, and the copolymerization behavior of the comonomers was shown to change with the comonomer feed composition. This would have resulted in variable graft copolymer microstructures. Graft copolymers produced by conventional free radical copolymerization were incorporated in commercial acrylic (poly(methyl methacrylate)-based) bone cement formulations. Cements with formulations containing 6.6-6.7, and 13.5 wt.-% of PMMA-graft-PHB were prepared. The morphology of the graft copolymer particles was suggested to influence the processability of the modified cement. The cements were found rather porous, with average porosities of 13.5 to 16.9%. Nevertheless compression strengths were quite similar to those found for the reference material, pure Antibiotic SimplexRTM, and met the ASTM requirements on acrylic b" --
Author : Дмитрій Цертелев (князь)
Publisher :
ISBN 13 :
Total Pages : 170 pages
Book Rating : 4.:/5 (784 download)
Download or read book Стихотворен−ия, 1883-1891 written by Дмитрій Цертелев (князь) and published by . This book was released on 1892 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pummy Singh
Publisher :
ISBN 13 :
Total Pages : 46 pages
Book Rating : 4.:/5 (957 download)
Download or read book Synthesis and Characterization of Novel Silicone Graft Copolymers written by Pummy Singh and published by . This book was released on 2016 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silicone compounds have a very low surface energy due to highly flexible Si-O-Si backbone and large number of CH3 groups, but these compounds are extremely hydrophobic and thus have limited applications in aqueous formulations. Modification of such silicone compounds by grafting hydrophilic chains provides a wide range of silicone products called "Silicone Surfactants". Silicone surfactants are surface active agents which get adsorbed at the air-water interface thereby, reducing the interfacial tension. Some of the larger applications of silicone surfactant are in the manufacture of plastic foams, in personal care products and as spreading and wetting agents (Hill, R.M, 2002).In this thesis, a series of silicone surfactant graft copolymers were synthesized via hydrosilylation reaction. Poly(ethylene glycol) (PEG) of different chain length was grafted to a hydrophobic Poly(methylhydrosiloxane) (PMHS) backbone to improve the final hydrophilicity. Also, a positively charged quaternary ammonium salt (allyltriethylammonium bromide) was grafted to the PMHS backbone. The objective of this thesis was to synthesize polymers in predefined ratios of the above mentioned side groups and utilize these polymers to-1) Study the effect of PEG chain length and its composition on the hydrophilicity of the polymer.2) Study the effect of PEG: ammonium salt ratio on the surface tension of aqueous systems. Analysis of FT-IR and 1H NMR spectra of the polymers confirmed the predicted structure. The absence of characteristic Si-H absorbance peak at 2160 cm-1 in FT-IR spectra indicates consumption of silane groups along the polymer backbone. The actual moles of the side chain grafted on the backbone are calculated by 1H NMR peak integration. The results of contact angle studies indicated an increase in hydrophilicity with an increase in the composition of PEG in molecule. A 2*2 factorial DOE analysis reported that the fraction of Si-H bonds converted to PEG grafts was the critical factor towards increasing the hydrophilicity (p value of 0.015). Surface tension studies report that the air-water interfacial tension of the synthesized polymers is between 28mN/m 45mN/m. The amount of Si-H was concluded to be the deciding factor in lowering the surface tension.
Author : Matthew Stanley Sheridan
Publisher :
ISBN 13 :
Total Pages : 610 pages
Book Rating : 4.:/5 (298 download)
Download or read book Well Defined Graft Copolymers and End Functional Materials written by Matthew Stanley Sheridan and published by . This book was released on 1993 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Satu Häkkinen
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)
Download or read book Synthesis and Applications of Functional Graft Copolymers written by Satu Häkkinen and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 526 pages
Book Rating : 4.3/5 (91 download)
Download or read book Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards written by and published by . This book was released on 1996 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theses on any subject submitted by the academic libraries in the UK and Ireland.
Author : C.G. Gebelein
Publisher : Springer Science & Business Media
ISBN 13 : 1461306574
Total Pages : 297 pages
Book Rating : 4.4/5 (613 download)
Download or read book Biomimetic Polymers written by C.G. Gebelein and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: The term biomimetic is comparatively new on the chemical scene, but the concept has been utilized by chemists for many years. Furthermore, the basic idea of making a synthetic material that can imitate the func tions of natural materials probably could be traced back into antiquity. From the dawn of creation, people have probably attempted to duplicate or modify the activities of the natural world. (One can even find allusions to these attempts in the Bible; e. g. , Genesis 30. ) The term "mimetic" means to imitate or mimic. The word "mimic" means to copy closely, or to imitate accurately. Biomimetic, which has not yet entered most dictionaries, means to imitate or mimic some specific bio logical function. Usually, the objective of biomimetics is to form some useful material without the need of utilizing living systems. In a simi lar manner, the term biomimetic polymers means creating synthetic poly mers which imitate the activity of natural bioactive polymers. This is a major advance in polymer chemistry because the natural bioactive polymers are the basis of life itself. Thus, biomimetic polymers imitate the life process in many ways. This present volume delineates some of the recent progress being made in this vast field of biomimetic polymers. Chemists have been making biomimetic polymers for more than fifty years, although this term wasn't used in the early investigations.
Author : J.M.G. Cowie
Publisher : Springer Science & Business Media
ISBN 13 : 1475791399
Total Pages : 292 pages
Book Rating : 4.4/5 (757 download)
Download or read book Alternating Copolymers written by J.M.G. Cowie and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examination of the early literature attests to the fact that the study of copolymerization was initiated when polymer science was in its infancy. It has continued to grow to a subject of major importance and has been a source of interest to both academic and industrialist alike. The wide spectrum of structures and properties available in the statistical copolymer has made this a fruitful field of exploration, but one particular and more restricted form which has held its own fascination for many is the limiting case of the strictly alternating copolymer. This is formed, in the ideal situation, when two monomers in a reaction mixture add consecutively to create a polymer chain with a regular {ABABAB} structure, irrespective of the monomer feed ratio. When this happens the resulting copolymer will always have the same composition, a feature which can be advantageous but also somewhat restrictive, as the ability to vary the properties is then limited. Within a series entitled Speciality Polymers it seems appropriate then to deal with this subject, particularly as no previous attempt has been made to draw together the various facets of alternating copolymerization into one volume. It also seems timely to present a more unified picture of the subject which will also illustrate the progress made.
Author : Mahmood Aliofkhazraei
Publisher : CRC Press
ISBN 13 : 1482236648
Total Pages : 502 pages
Book Rating : 4.4/5 (822 download)
Download or read book Advances in Nanostructured Composites written by Mahmood Aliofkhazraei and published by CRC Press. This book was released on 2019-04-30 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composites and nanocomposites are used in cases where long durability and strength of components are required; i.e., where high stress levels, erosion processes and multiphase environments are present, including the parts under collision and impact, the parts under rotating motion and erosion (like excavation drills in oil and gas wells). The first volume of this book aims to provide a guide for fabrication of new nanocomposites mainly based on carbon nanotubes and graphene. The main topics of this volume are: Application of Nano-powders for Formation of Metal Matrix of Composites, Conjugated Polymer Nanocomposites, Biopolymer Nanocomposites, Dental Nanocomposites, Graphene-based Nanocomposites for Electrochemical Energy Storage, Polymer/Filler Composites for Optical Diffuse Reflectors, Synthesis and Applications of LDH-Based Nanocomposites, Rubber—CNT Nanocomposites, Nanocomposite Fibers with Carbon Nanotubes, Fabrications of Graphene Based Nanocomposites for Electrochemical Sensing of Drug Molecules, Recent Advances in Graphene Metal Oxide Based Nanocomposites.
Author : Vijay Kumar Thakur
Publisher : John Wiley & Sons
ISBN 13 : 1119224462
Total Pages : 902 pages
Book Rating : 4.1/5 (192 download)
Download or read book Handbook of Composites from Renewable Materials, Nanocomposites written by Vijay Kumar Thakur and published by John Wiley & Sons. This book was released on 2017-04-06 with total page 902 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique multidisciplinary 8-volume set focuses on the emerging issues concerning synthesis, characterization, design, manufacturing and various other aspects of composite materials from renewable materials and provides a shared platform for both researcher and industry. The Handbook of Composites from Renewable Materials comprises a set of 8 individual volumes that brings an interdisciplinary perspective to accomplish a more detailed understanding of the interplay between the synthesis, structure, characterization, processing, applications and performance of these advanced materials. The Handbook comprises 169 chapters from world renowned experts covering a multitude of natural polymers/ reinforcement/ fillers and biodegradable materials. Volume 7 is solely focused on the "Nanocomposites: Science and Fundamentals" of renewable materials. Some of the important topics include but not limited to: Preparation, characterization, and applications of nanomaterials from renewable resources; hydrogels and its nanocomposites from renewable resources: preparation of chitin-based nanocomposite materials through gelation with ionic liquid; starch-based bionanocomposites; biorenewable nanofiber and nanocrystal; investigation of wear characteristics of dental composite reinforced with rice husk-derived nanosilica filler particles; performance of regenerated cellulose/vermiculite nanocomposites fabricated via ionic liquid; preparation, structure, properties, and interactions of the PVA/cellulose composites; green composites with cellulose nanoreinforcements; biomass composites from bamboo-based micro/nanofibers; synthesis and medicinal properties of polycarbonates and resins from renewable sources; nanostructured polymer composites with modified carbon nanotubes; organic–inorganic nanocomposites derived from polysaccharides; natural polymer-based nanocomposites; cellulose whisker-based green polymer composites; poly (lactic acid) nanocomposites reinforced with different additives; nanocrystalline cellulose; halloysite-based bionanocomposites; nanostructurated composites based on biodegradable polymers and silver nanoparticles; starch-based biomaterials and nanocomposites; green nanocomposites based on PLA and natural organic fillers; and chitin and chitosan-based nanocomposites.
Author : Khouloud Jlassi
Publisher : Elsevier
ISBN 13 : 0323461611
Total Pages : 548 pages
Book Rating : 4.3/5 (234 download)
Download or read book Clay-Polymer Nanocomposites written by Khouloud Jlassi and published by Elsevier. This book was released on 2017-07-26 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clay–Polymer Nanocomposites is a complete summary of the existing knowledge on this topic, from the basic concepts of synthesis and design to their applications in timely topics such as high-performance composites, environment, and energy issues. This book covers many aspects of synthesis such as in- situ polymerization within the interlamellar spacing of the clays or by reaction of pristine or pre-modified clays with reactive polymers and prepolymers. Indeed, nanocomposites can be prepared at industrial scale by melt mixing. Regardless the synthesis method, much is said in this book about the importance of theclay pre-modification step, which is demonstrated to be effective, on many occasions, in obtaining exfoliated nanocomposites. Clay–Polymer Nanocomposites reports the background to numerous characterization methods including solid state NMR, neutron scattering, diffraction and vibrational techniques as well as surface analytical methods, namely XPS, inverse gas chromatography and nitrogen adsorption to probe surface composition, wetting and textural/structural properties. Although not described in dedicated chapters, numerous X-ray diffraction patterns of clay–polymer nanocomposites and reference materials are displayed to account for the effects of intercalation and exfoliations of layered aluminosilicates. Finally, multiscale molecular simulation protocols are presenting for predicting morphologies and properties of nanostructured polymer systems with industrial relevance. As far as applications are concerned, Clay–Polymer Nanocomposites examines structural composites such as clay–epoxy and clay–biopolymers, the use of clay–polymer nanocomposites as reactive nanocomposite fillers, catalytic clay-(conductive) polymers and similar nanocomposites for the uptake of hazardous compounds or for controlled drug release, antibacterial applications, energy storage, and more. The most comprehensive coverage of the state of the art in clay–polymer nanocomposites, from synthesis and design to opportunities and applications Covers the various methods of characterization of clay–polymer nanocomposites - including spectroscopy, thermal analyses, and X-ray diffraction Includes a discussion of a range of application areas, including biomedicine, energy storage, biofouling resistance, and more
