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Approaching the material from a chemistry and engineering perspective, High Performance Polymers presents the most reliable and current data available about state-of-the-art polymerization, fabrication, and application methods of high performance industrial polymers. Chapters are arranged according to the chemical constitution of the individual classes, beginning with main chain carbon-carbon polymers and leading to ether-containing, sulfur-containing, and so on. Each chapter follows an easily readable template, provides a brief overview and history of the polymer, and continues on
Polymer engineering. --- Polymers --- Industrial applications.
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Polymeric composites. --- Composite polymeric materials --- Polymer-matrix composites --- Reinforced plastics
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The agricultural sector is the main source of raw materials for biopolymers such as soy protein isolates (SPI), natural fibers, polylactic acid (PLA), polyhydroxybutyrates (PHBs), and many more. Over the years, the biopolymer sector has witnessed significant developments due to substantial investments that have been made in green technologies/processes. Apart from this, focus has also been given to improving the performance of the existing thermoplastic as well as thermoset polymers and synthetic fiber based composites. With the onset of green technology/process, agriculture has witnessed rapi
Polymeric composites. --- Composite polymeric materials --- Polymer-matrix composites --- Reinforced plastics
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Micromechanics. --- Fiber orientation. --- Ceramic matrix composites. --- Polymer matrix composites. --- Misalignment.
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Lianwei Li's Ph.D. thesis solves a long-standing problem in polymer physics: how does a hyperbranched chain pass through a cylindrical pore smaller than its size under an elongational flow field? The question was asked by the Nobel Laureate, the late Professor de Gennes in the 70s but has never been seriously addressed through real experiments. This thesis outlines how Lianwei Li developed a novel polymerization strategy using a seesaw-type macromonomer to prepare a set of "defect-free" hyperbranched chains with different overall molar masses and controllable uniform subchain lengths. The author then unearthed how the critical (minimum) flow rate at which a hyperbranched chain can pass through the pore, is dependent on the overall molar mass and the subchain length. The experimental results give a unified description of polymer chains with different topologies passing through a small cylindrical pore, which enables us to separate chains by their topologies instead of their sizes in ultrafiltration. In addition, this research also reveals how the chain structure of amphiphilic hyperbranched block and graft copolymers affect their solution properties, including the establishments of several classic scaling laws that relate the chain size and the intrinsic viscosity to the overall molar mass and the subchain length, respectively. This work has led to numerous publications in high-impact peer-reviewed journals.
Dendrimers. --- Polymers. --- Polymere --- Polymeride --- Polymers and polymerization --- Macromolecules --- Dendritic compounds --- Polymer Sciences. --- Polymers .
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Shape-memory polymers (SMP) are a unique branch of the smart materials family which are capable of changing shape on-demand upon exposure to external stimulus. The discovery of SMP made a significant breakthrough in the developments of novel smart materials for a variety of engineering applications, superseded the traditional materials, and also influenced the current methods of product designing. This book provides the latest advanced information of on-going research domains of SMP. This will certainly enlighten the reader to the achievements and tremendous potentials of SMP. The basic fundam
Polymeric composites --- Polymers --- Composite polymeric materials --- Polymer-matrix composites --- Reinforced plastics --- Analysis.
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A new immobilization method for the localized adsorption of proteins on thermoplastic surfaces is introduced. Artificial three-phase interfaces were realized by surface structuring to control the wetting behavior which lead to a preferred adsorption in these modified areas. Additionally, different fabrication methods were analyzed to determine mass fabrication capabilities. These fabrication methods also allowed the production of fully structured microchannels to tune the fluids behavior within.
KunststoffverarbeitungLab-on-a-Chip --- Mikrofluidik --- Microfabrication --- Lab-on-a-Chip --- Polymer processing --- Mikrofertigung --- Microfluidics
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Dieses Lehrbuch beschäftigt sich mit der Synthese, der Charakterisierung, den Materialeigenschaften und den technischen Anwendungen von Polymeren. Ziel ist es, breite Kenntnisse der Grundbegriffe der makromolekularen Chemie und der besonderen Eigenschaften dieser Verbindungsklasse zu vermitteln. Aufbauend auf den Grundkenntnissen der organischen Chemie und der Thermodynamik präsentiert das Buch ein leicht verständliches und dennoch tief gehendes Bild dieser sehr dynamischen und immer wichtiger werdenden Wissenschaft in der Schnittmenge von Chemie, Physik, Ingenieurwissenschaften und dem Life-Science-Sektor. In den ersten Kapiteln werden nach der Einführung der Grundbegriffe, Größe und Gestalt von Polymeren diskutiert. Ein besonders umfangreiches Kapitel ist den wichtigen Verfahren zur Bestimmung von Molmassen und ihren Verteilungen gewidmet. Es folgen Kapitel über Polymere im festen Zustand, in denen die komplexen Zusammenhänge dieses Gebietes übersichtlich und klar dargestellt werden. Insbesondere dieser Abschnitt ist eine der vielen Bereicherungen gegenüber bisherigen Lehrbüchern. Anschaulich werden hier Einflüsse der chemischen Struktur und Architektur auf die Materialeigenschaften polymerer Werkstoffe dargestellt. Kapitel über Stufenwachstums-, radikalische, ionische, ringöffnende und koordinative Polymerisationen gehören unbedingt in jedes Lehrbuch und nehmen auch hier den ihnen gebührenden Raum ein. Sie belegen einmal mehr, wie vielfältig die Synthesech emie polymerer Materialien ist. Dieser chemische Blickwinkel wird noch durch das Kapitel über die Copolymerisation erweitert. Sehr nützlich und häufig in anderen Lehrbüchern vernachlässigt sind die Kapitel über technische Polymere, Funktionspolymere, Elastomere und flüssigkristalline Polymere. Vervollständigt werden diese Kapitel durch eine anschauliche, qualitativ gut verständliche Beschreibung der wichtigsten Verarbeitungsmethoden. Ein Thema, das in einem zeitgemäßen Lehrbuch nicht fehlen darf, wird im Kapitel „Polymere und Umwelt“ behandelt. Die im abschließenden Kapitel unter „Moderne Trends“ zusammengefassten Beispiele sollen Neugier auf die Zukunft dieses Fachgebiets wecken. Bei der Verfassung des Buches wurde großer Wert auf gute Lesbarkeit trotz der erforderlichen Detailtiefe gelegt – ein Buch, das sich für Studierende der Chemie und verwandter Studiengänge genauso eignet wie für den angewandten Naturwissenschaftler im industriellen Umfeld. Die Autoren: Dr. Sebastian Koltzenburg, Principal Scientist in der Material- und Systemforschung der BASF und Dozent für makromolekulare Chemie an der Universität Heidelberg Univ.-Prof. Dr. Michael Maskos, Geschäftsführer des Instituts für Mikrotechnik Mainz und Professor für chemische Verfahrenstechnik/Mikrofluidik an der Universität Mainz Prof. Dr.-Ing. Oskar Nuyken, ehemaliger Leiter der Lehrstühle für Makromolekulare Chemie an der Universität Bayreut h (1986 -1992) und an der TU München (1992-2007).
Polymers . --- Organic chemistry. --- Inorganic chemistry. --- Polymer Sciences. --- Organic Chemistry. --- Inorganic Chemistry.
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Polymer matrix composites. --- Elastoplasticity. --- Stress-strain relationships. --- Stress-strain diagrams. --- Orthotropism.
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In this thesis, the author describes versatile and easy-to-use methods to control the properties of thermoresponsive polyacrylamides by developing novel synthetic methods for end-functionalized poly(N-isopropylacrylamide) (PNIPAM) and block copolymers of poly(N,N-diethylacrylamide) (PDEAA). The synthesis of various urea end-functionalized PNIPAMs was achieved by the atom transfer radical polymerization (ATRP) and the click reaction. The phase transition temperature of PNIPAM in water was controlled depending on the strength of the hydrogen bonding of the urea groups introduced at the chain end of the polymer. Novel living polymerization methods for N,N-dimethylacrylamide and N,N-diethylacrylamide were developed by group transfer polymerization (GTP) using a strong Brønsted acid as a precatalyst and an amino silyl enolate as an initiator. This process enabled the precise synthesis of PDEAA and its block copolymers—namely, thermoresponsive amphiphilic block copolymers and double-hydrophilic block copolymers.
Chemistry, Organic. --- Polymers. --- Polymere --- Polymeride --- Polymers and polymerization --- Macromolecules --- Organic chemistry --- Chemistry --- Polymer Sciences. --- Organic Chemistry. --- Polymers . --- Organic chemistry.
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