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Polymerization --- Macromolecules --- Synthesis --- Regulation
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Polymerization. --- Copolymers. --- Copolymers --- Industrial applications.
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This book reports on origin and history of polycondensation chemistry beginning in the first half of the 19th century. Furthermore, history and inventors of the most important polycondensates, such as Nylons, PET or polycarbonates, are described. The classical theory of step-growth polymerizations is discussed in the light of the latest experimental and theoretical results. Particular emphasis is laid on the role of cyclization reactions. Special categories of polycondensation processes are discussed in more detail: syntheses of hyperbranched and multicyclic polymers, non-stoichiometric polycondensations, interfacial polycondensations, solid state polycondensations, condensative chain polymerizations etc.
Polycondensation. --- Polymerization. --- Polymerisation --- Polymers --- Polymers and polymerization --- Synthesis of polymers --- Condensation polymerization --- Step-growth polymerization --- Synthesis --- Chemistry. --- Organic chemistry. --- Polymers. --- Polymer Sciences. --- Organic Chemistry. --- Chemical reactions --- Polymerization --- Chemistry, Organic. --- Polymere --- Polymeride --- Macromolecules --- Organic chemistry --- Chemistry --- Polymers .
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Polymer Surface Characterization provides a comprehensive approach to the surface analysis of polymers of technological interest by means of modern analytical techniques. Basic principles, operative conditions, applications, performance, and limiting features are supplied, together with current advances in instrumental apparatus. Each chapter is devoted to one technique and is self-consistent; the end-of-chapter references would allow the reader a quick access to more detailed information. After an introductory chapter, techniques that can interrogate the very shallow depth of a polymer surface, spanning from the top few angstroms in secondary ions mass spectrometry to 2-10 nm in X-ray photoelectron spectroscopy are discussed, followed by Fourier transform infrared spectroscopy and chapters on characterization by scanning probe microscopy, electron microscopies, wettability and spectroscopic ellipsometry.
Polymers --- Polymere --- Polymeride --- Polymers and polymerization --- Macromolecules --- Surfaces --- Analysis.
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polyolefins synthesis --- polyolefins characterization --- polyolefins processing --- polymerization kinetics --- polymerization mechanisms --- catalysts --- Polyolefins --- Polyolefins. --- Thermoplastic polyolefins --- TPOs (Thermoplastic polyolefins) --- Alkenes --- Polymers --- Thermoplastics --- Chemical Engineering
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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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Polymer Compounding, Volume 1 focuses on aspects of the raw materials used in polymer processing. Polymer compounding comprises a complex heterogeneous system of polymers and other ingredients and, in many ways, the preparation of these materials is still very much an art. It is a powerful tool that will eventually be required as one of the basics of polymer processing. . This book provides readers with a wide array of state-of-the-art strategies to develop their knowledge about compounding and the use of polymers while minimising wastage during processing. Details about polymer properties and
Polymers. --- Thermoplastics. --- Gums and resins, Synthetic --- Plastics --- Polymere --- Polymeride --- Polymers and polymerization --- Macromolecules
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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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Extrusion process. --- Polymers --- Extrusion. --- Polymere --- Polymeride --- Polymers and polymerization --- Macromolecules --- High energy forming --- Manufacturing processes --- Power presses
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