Amphiphilic Polymer Co Networks

Author : Costas S Patrickios
Publisher : Royal Society of Chemistry
ISBN 13 : 1839161345
Total Pages : 337 pages
Book Rating : 4.46/5 ( download)

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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 337 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.

Author : P. Alexandridis
Publisher : Elsevier
ISBN 13 : 0080527108
Total Pages : 449 pages
Book Rating : 4.09/5 ( download)

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Download or read book Amphiphilic Block Copolymers written by P. Alexandridis and published by Elsevier. This book was released on 2000-10-18 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is the belief of the editors of this book that the recognition of block copolymers as being amphiphilic molecules and sharing common features with other well-studied amphiphiles will prove beneficial to both the surfactant and the polymer communities. An aim of this book is to bridge the two communities and cross-fertilise the different fields. To this end, leading researchers in the field of amphiphilic block copolymer self-assembly, some having a background in surfactant chemistry, and others with polymer physics roots, have agreed to join forces and contribute to this book.The book consists of four entities. The first part discusses theoretical considerations behind the block copolymer self-assembly in solution and in the melt. The second part provides case studies of self-assembly in different classes of block copolymers (e.g., polyethers, polyelectrolytes) and in different environments (e.g., in water, in non-aqueous solvents, or in the absence of solvents). The third part presents experimental tools, ranging from static (e.g., small angle neutron scattering) to dynamic (e.g., rheology), which can prove valuable in the characterization of block copolymer self-assemblies. The fourth part offers a sampling of current applications of block copolymers in, e.g., formulations, pharmaceutics, and separations, applications which are based on the unique self-assembly properties of block copolymers.

Author : Enrico Drioli
Publisher : Springer
ISBN 13 : 9783662443231
Total Pages : 1100 pages
Book Rating : 4.36/5 ( download)

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Download or read book Encyclopedia of Membranes written by Enrico Drioli and published by Springer. This book was released on 2016-07-14 with total page 1100 pages. Available in PDF, EPUB and Kindle. Book excerpt: A landmark work covering the major aspects of the science, technology and application of membrane operations and related fields, from basic phenomena to the most advanced applications and future perspectives. Over 1500 concise entries in an A-Z format cover a vibrant field with a multitude of applications in diverse disciplines such as biotechnology, medicine, agro-food and petrochemical industries, environmental protection, as well as drinking water supply. Coverage includes membrane reactors and catalytic design (catalytic membrane reactors). Practically all unit operations of process engineering can be redesigned as membrane unit operations (e. g. membrane distillation, membrane crystallization, membrane stripping, membrane scrubbing). Entries are provided by an international team of experts from academia, research institutions as well as from industry.

Author : Richard G Jones
Publisher : Royal Society of Chemistry
ISBN 13 : 1847559425
Total Pages : 464 pages
Book Rating : 4.25/5 ( download)

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Download or read book Compendium of Polymer Terminology and Nomenclature written by Richard G Jones and published by Royal Society of Chemistry. This book was released on 2009-01-19 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: The IUPAC system of polymer nomenclature has aided the generation of unambiguous names that re ect the historical development of chemistry. However, the explosion in the circulation of information and the globalization of human activities mean that it is now necessary to have a common language for use in legal situations, patents, export-import regulations, and environmental health and safety information. Rather than recommending a ‘unique name’ for each structure, rules have been developed for assigning ‘preferred IUPAC names’, while continuing to allow alternatives in order to preserve the diversity and adaptability of nomenclature. Compendium of Polymer Terminology and Nomenclature is the only publication to collect the most important work on this subject into a single volume. It serves as a handy compendium for scientists and removes the need for time consuming literature searches. One of a series issued by the International Union of Pure and Applied Chemistry (IUPAC), it covers the terminology used in many and varied aspects of polymer science as well as the nomenclature of several di erent types of polymer including regular and irregular single-strand organic polymers, copolymers and regular double-strand (ladder and spiro) organic polymers.

Author : Gustavo A. Guzman Cardozo
Publisher :
ISBN 13 :
Total Pages : 192 pages
Book Rating : 4.43/5 ( download)

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Download or read book Bimodal Amphiphilic Polymer Conetworks written by Gustavo A. Guzman Cardozo and published by . This book was released on 2016 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first part of this study presents a strategy for the synthesis of novel bimodal amphiphilic grafts consisting of hydrophilic poly (N,N-dimethylacrylamide) (PDMAAm) main chains carrying two different molecular weight hydrophobic polydimethylsiloxane (PDMS) branches whose crosslinking leads to bimodal amphiphilic conetworks ([beta]-APCNs). The effect of crosslinker ratio and amount of high molecular weight PDMS on the conetwork's morphology, swelling characteristics and mechanical properties were evaluated. The materials exhibited bulk microphase separation with short-range ordering, and superficial demixing with only the hydrophobic phase present at the surface. A multi-scale, composition-dependent, elastic wrinkling-instability was shown to control surface morphology. The coexistence of low and high molecular weight PDMS in [beta]-APCNs greatly improved ultimate mechanical properties. The second study concerns the structure development of [beta]-APCNs during film processing from solution. Time-resolved gravimetry, low contact angles and negative out-of-plane birefringence provided strong experimental evidence of transitory trapping of thermodynamically unfavorable hydrophilic moieties at the air-film interface due to fast asymmetric solvent depletion. We also find that slow-drying hydrophobic elements progressively substitute hydrophilic domains at the surface as the surface-energy is minimized. The third study proposes a novel approach to zero-order, constant-rate drug delivery from [beta]-APCN-based contact lenses. Quasi-Case II non-Fickian transport was achieved by non-uniform drug and diffusivity distributions within three-layer bimodal amphiphilic conetworks. We demonstrated experimentally and by modeling that the combined effect of non-uniform distribution of drug loading and diffusion constants within the three-layer lens maintains low local drug concentration at the lens-fluid interface and yields zero-order drug delivery.The final study uses in-situ ellipsometry, contact angle measurements, and X-ray photoelectron spectroscopy to investigate the swelling behavior, surface characteristics and adsorption of plasma proteins of bimodal amphiphilic conetworks ([beta]-APCNs). We demonstrated that plasma protein adsorption in [beta]-APCNs is transport-limited. [beta]-APCNs have the ability to reconfigure their surfaces depending on the medium as evidenced by large contact angle hysteresis, so that in aqueous solution hydrophilic moieties populate the surface. Protein adsorption occurred at the hydrophobic PDMS domains (which become buried in the bulk after swelling) and plasma proteins needed to diffuse into the conetwork in order to adsorb. Desorption was dependent on the initial adsorption rate.

Author :
Publisher : ScholarlyEditions
ISBN 13 : 1481669214
Total Pages : 777 pages
Book Rating : 4.14/5 ( download)

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Download or read book Acrylates—Advances in Research and Application: 2013 Edition written by and published by ScholarlyEditions. This book was released on 2013-06-21 with total page 777 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acrylates—Advances in Research and Application: 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Acrylamides. The editors have built Acrylates—Advances in Research and Application: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Acrylamides in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Acrylates—Advances in Research and Application: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Author : Alexander Böker
Publisher : MDPI
ISBN 13 : 3038424587
Total Pages : 175 pages
Book Rating : 4.81/5 ( download)

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Download or read book Young Talents in Polymer Science written by Alexander Böker and published by MDPI. This book was released on 2018-07-05 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Young Talents in Polymer Science" that was published in Polymers

Author : Sebastian Ulrich
Publisher :
ISBN 13 :
Total Pages : 263 pages
Book Rating : 4.45/5 ( download)

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Download or read book Visible Light-responsive Amphiphilic Polymer Conetworks Based on DASA Photoswitches written by Sebastian Ulrich and published by . This book was released on 2019 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author :
Publisher : ScholarlyEditions
ISBN 13 : 1464963770
Total Pages : 2599 pages
Book Rating : 4.73/5 ( download)

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Download or read book Issues in Industrial, Applied, and Environmental Chemistry: 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 2599 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Industrial, Applied, and Environmental Chemistry: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Industrial, Applied, and Environmental Chemistry. The editors have built Issues in Industrial, Applied, and Environmental Chemistry: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Industrial, Applied, and Environmental Chemistry in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Industrial, Applied, and Environmental Chemistry: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Author : Shyan-lung Chung
Publisher : World Scientific
ISBN 13 : 9814678988
Total Pages : 698 pages
Book Rating : 4.88/5 ( download)

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Download or read book Materials Science And Energy Engineering (Cmsee 2014) - Proceedings Of The 2014 International Conference written by Shyan-lung Chung and published by World Scientific. This book was released on 2015-03-26 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings collected together ninety-seven selected articles on recent research works and innovations in material science and energy engineering, presented at the 2014 International Conference on Materials Science and Energy Engineering (CMSEE 2014), held in Sanya, Hainan, China during December 12 - 14, 2014.CMSEE2014 covers a wide range of fundamental studies, technical innovations and industrial applications in material science and energy engineering, and were attended by 130 participants from different countries and regions in the world including China, Canada, Japan, Korea, Taiwan, Turkey, Egypt and Russia, to exchange notes on latest research, and synergic in future scientific collaborations.All papers submitted were subjected to a rigorous peer-review process by at least two independent reviewers to ensure that articles selected are of highest standard and are relevance to the aims and scope of CMSEE 2014.