Download or read book Synthesis and Properties of Interpenetrating Polymer Networks written by J. A. McCluskey and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Polymers and Interpenetrating Polymer Networks IPNs with Nonlinear Optical NLO Properties and Related Numerical Studies written by P. R. Srikanth Sharma and published by . This book was released on 1998 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interpenetrating Polymer Networks and Related Materials written by L.H. Sperling and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: To the surprise of practically no one, research and engineering on multi polymer materials has steadily increased through the 1960s and 1970s. More and more people are remarking that we are running out of new monomers to polymerize, and that the improved polymers of the future will depend heavily on synergistic combinations of existing materials. In the era of the mid-1960s, three distinct multipolymer combinations were recognized: polymer blends, grafts, and blocks. Although inter penetrating polymer networks, lPNs, were prepared very early in polymer history, and already named by Millar in 1960, they played a relatively low-key role in polymer research developments until the late 1960s and 1970s. I would prefer to consider the IPNs as a subdivision of the graft copolymers. Yet the unique topology of the IPNs imparts properties not easily obtainable without the presence of crosslinking. One of the objectives of this book is to point out the wealth of work done on IPNs or closely related materials. Since many papers and patents actually concerned with IPNs are not so designated, this literature is significantly larger than first imagined. It may also be that many authors will meet each other for the first time on these pages and realize that they are working on a common topology. The number of applications suggested in the patent literature is large and growing. Included are impact-resistant plastics, ion exchange resins, noise-damping materials, a type of thermoplastic elastomer, and many more.
Download or read book Micro and Nano Structured Interpenetrating Polymer Networks written by Sabu Thomas and published by John Wiley & Sons. This book was released on 2016-04-11 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the current state of the art, new challenges, opportunities, and applications of IPNs. With contributions from experts across the globe, this survey is an outstanding resource reference for anyone involved in the field of polymer materials design for advanced technologies. • Comprehensively summarizes many of the recent technical research accomplishments in the area of micro and nanostructured Interpenetrating Polymer Networks • Discusses various aspects of synthesis, characterization, structure, morphology, modelling, properties, and applications of IPNs • Describes how nano-structured IPNs correlate their multiscale structure to their properties and morphologies • Serves as a one-stop reference resource for important research accomplishments in the area of IPNs and nano-structured polymer systems • Includes chapters from leading researchers in the IPN field from industry, academy, government and private research institutions
Download or read book Polyurethane Polymers Blends and Interpenetrating Polymer Networks written by Sabu Thomas and published by Elsevier. This book was released on 2017-08-15 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyurethane Polymers: Blends and Interpenetrating Networks deals with almost all aspects of blends and IPNs formed by polyurethane, including the thermal, mechanical, morphological, and viscoelastic properties of each blend presented in the book. In addition, major applications related to these blends and IPNs are mentioned. Provides an elaborate coverage of the chemistry of polyurethane, including its synthesis and properties Includes available characterization techniques Relates types of polyurethanes to their potential properties Discusses blends options
Download or read book Synthesis and Characterization of Poly Organophosphazene Interpenetrating Polymer Networks written by and published by . This book was released on 1994 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyphosphazenes are a broad, novel class of inorganic-organic macromolecules. The physical properties of polyphosphazenes can be understood in terms of a highly flexible backbone, with various physical or chemical characteristics tailored by the incorporation of specific side groups. As part of our program to synthesize new materials with hybrid macromolecular properties, the synthesis and characterization of several IPNs containing phosphazene polymers is described. Phosphazenes, Polymers, Synthesis, Characterization, Interpenetrating polymer networks.
Download or read book Synthesis and Characterization of Interpenetrating Polymer Networks IPN s of Poly 2 6 dimethyl 2 4 phenylene Oxide and Polydimethylsiloxane written by Kassu Gebreyes and published by . This book was released on 1989 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interpenetrating Polymer Networks written by Daniel Klempner and published by . This book was released on 1994 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a comprehensive review of interpenetrating polymer networks. Opens with four review chapters by important workers in the field--Sperling, Klempner, Utracki, and Lipatov- and continues with an international penetration of current research. Covers synthesis and structure, miscibility and morphology, structure-property relationships, transport and permeability, and functionalized triglyceride oils.
Download or read book Advances in Interpenetrating Polymer Networks written by Kurt C. Frisch and published by CRC Press. This book was released on 1990-07-10 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemistry and Properties of Crosslinked Polymers written by Labana and published by Elsevier. This book was released on 2012-12-02 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemistry and Properties of Crosslinked Polymers provides a description of the structure property relationship, chemistry, and methods of characterization of crosslinked polymers. The book presents papers that discuss experimental techniques to study polymer network structure; deduction of information on network structure from theoretical considerations; interpenetrating polymer networks; crosslinked polymers for high temperature applications; a novel class of polyurethanes; crosslinking agents; and the influence of crosslinking agents on thermal and mechanical properties. The text will be of value to materials scientists and engineers, chemists, and researchers in the field of polymer science.
Download or read book Amphiphilic Polymer Co networks written by Costas S Patrickios and published by Royal Society of Chemistry. This book was released on 2020-04-23 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amphiphilic polymer co-networks (APCNs) are a type of polymeric hydrogel, their hydrophobic polymer segments and hydrophilic components produce less aqueous swelling, giving better mechanical properties than conventional hydrogels. This new class of polymers is attracting increasing attention, resulting in further basic research on the system, as well as new applications. This book focuses on new developments in the field of APCNs, and is organised in four sections: synthesis, properties, applications and modelling. Co-network architectures included in the book chapters are mainly those deriving from hydrophobic macro-cross-linkers, representing the classical approach; however, more modern designs are also presented. Properties of interest discussed include aqueous swelling, thermophysical and mechanical properties, self-assembly, electrical actuation, and protein adsorption. Applications described in the book chapters include the use of co-networks as soft contact lenses, scaffolds for drug delivery and tissue engineering, matrices for heterogeneous biocatalysis, and membranes of controllable permeability. Finally, an important theory chapter on the modelling of the self-assembly of APCNs is also included. The book is suitable for graduate students and researchers interested in hydrogels, polymer networks, polymer chemistry, block copolymers, self-assembly and nanomaterials, as well as their applications in contact lenses, drug delivery, tissue engineering, membranes and biocatalysis.
Download or read book Interpenetrating Polymer Network Biomedical Applications written by Sougata Jana and published by Springer Nature. This book was released on 2020-02-18 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book focuses on novel interpenetrating polymer network (IPN)/semi-IPN technologies for drug delivery and biomedical applications. The dynamism of the design and development of interpenetrating network polymers is based on their ability to provide free volume for the easy encapsulation of drugs in the three-dimensional network structure obtained by cross-linking two or more polymer networks. Natural polymer-based IPNs can deliver drugs at a controlled rate over an extended period of time, while novel IPNs ensure better mechanical strength and sustained/ controlled drug-delivery properties. This book presents an overview of the use of this technology to fabricate nanomedicine, hydrogels, nanoparticles, and microparticles, thereby unlocking IPN’s potential in the area of drug delivery and biomedical engineering. It also discusses applications of IPN systems in cancer therapy and tissue engineering, and describes the various IPN systems and their wide usage and applications in drug delivery.
Download or read book Synthesis and Characterization of Interpenetrating Polymer Networks for Applications in Extraterrestrial Radiation Shielding written by Josiah Arevalo Hammack and published by . This book was released on 2016 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: During interplanetary voyages spacecraft are exposed to a variety of ionizing radiations, including high intensity electromagnetic radiation and galactic cosmic rays, creating conditions that are harmful to both instrumentation and human passengers. Current shielding methods offer a degree of protection, but they are not suitable for long term missions or for habitation on extraterrestrial environments, and traditional terrestrial shields are too heavy to be carried on these missions. Organic polymers offer a versatile, lightweight solution to many of the difficulties in shielding, however they also present difficulties establishing a sufficiently high hydrogen content while maintaining high mechanical and thermal stability. By mixing two polymer species together it is possible to produce a material that combines the properties of both polymers, yet due to the immiscible nature of most polymeric materials, using polymer blends is not a practical solution. However it is possible to bypass the issue of immiscibility by dissolving different polymer species together and crosslinking like chains together, forming an interpenetrating polymer network (IPN). This research focuses on the synthesis and characterization of IPNs consisting of aliphatic and aromatic polymer species, containing a high hydrogen content and good mechanical properties, respectively, to be used in extraterrestrial environments to provide protection from ionizing radiation for humans and instrumentation alike.
Download or read book Interpenetrating polymer network of blocked polyurethane and phenolic resin I Synthesis morphology and mechanical properties written by 孫昀妘 (化學工程) and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Interpenetrating Polymer Networks of Poly 2 6 dimethyl 1 4 phenylene Oxide and Polyvinyl Pyridine written by Gregory D. Phelan and published by . This book was released on 1998 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design and Synthesis of Interpenetrating Polymer Networks for Second Order Nonlinear Optics written by and published by . This book was released on 1995 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been a tremendous recent interest in the development of second-order nonlinear optical (NLO) polymeric materials for photonic applications. However, a major drawback of second-order NLO polymers that prevents them from being used in device applications is the instability of their electric field induced dipolar alignment. The randomization of the dipole orientation leads to the decay of second-order optical nonlinearities. Numerous efforts have been made to increase the stability of the second-order NLO properties of polymers. The search for new approaches to develop NLO polymers with optimal properties has been an active research area since the past decade. A novel approach, combining the hybrid properties of high glass transition temperatures, extensively crosslinked networks, and permanent entanglements, based on interpenetrating polymer networks (IPN) is introduced to develop stable second-order NLO materials. Two types of IPN systems are prepared and their properties are investigated. The designing criteria and the rationale for the selection of polymers are discussed. The IPN samples show excellent temporal stability at elevated temperatures. Long term stability of the optical nonlinearity at 100 C has been observed in these materials. Temporal stability of the NLO properties of these IPNs is synergistically enhanced. Relaxation behavior of the optical nonlinearity of an IPN system has been studied and compared with that of a typical guest/host system. The improved temporal stability of the second-order NLO properties of this IPN system is a result of the combination of the high rigidity of the polymer backbones, crosslinked matrices, and permanent entanglements of the polymer networks. A slight modification of the chemical structure resulted in an improvement of the optical quality of the sample.
Download or read book Synthesis and Characterization of Interpenetrating Polymer Networks Composed of Tactic atactic Polystyrene and Study of Spinodal Decomposition in Pseudo Interpenetrating Polymer Networks written by Yuqian Du and published by . This book was released on 1996 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
