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  • 1
    Online Resource
    Online Resource
    Cham :Springer International Publishing AG,
    Keywords: Thermodynamics. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (108 pages)
    Edition: 1st ed.
    ISBN: 9783030382858
    Series Statement: SpringerBriefs in Physics Series
    DDC: 536.70000000000005
    Language: English
    Note: Intro -- Preface -- Contents -- Chapter 1: An Introduction to Thermodynamics and the First Law -- Chapter 2: The Second and Third Laws -- Chapter 3: Gibbs and Helmholtz Free Energies -- Chapter 4: A Comprehensive View of the State Functions Including Maxwell Relations -- Chapter 5: Chemical Potential and Partial Molar Properties -- Chapter 6: One-Component Systems: Transitions and Phase Diagrams -- Chapter 7: Solutions, Phase-Separated Systems, Colligative Properties and Phase Diagrams -- Chapter 8: Chemical Equilibrium -- Chapter 9: Thermodynamics Problems -- Gases -- First Law -- First and Second Laws Combined -- Gibbs and Helmholtz Free Energies and the Maxwell Relations -- Chemical Potential and Phase Equilibria -- Colligative Properties -- Chemical Equilibrium -- Phase Diagrams -- Chapter 10: Solutions to Problems -- Chapter 11: Mathematics Useful for the Thermodynamics -- References -- Index.
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  • 2
    Online Resource
    Online Resource
    Cham :Springer International Publishing AG,
    Keywords: Polymers. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (555 pages)
    Edition: 1st ed.
    ISBN: 9783030684723
    DDC: 668.9
    Language: English
    Note: Intro -- Preface -- Contents -- Chapter 1: Thermal Analysis of Polymers -- 1.1 Introduction -- 1.2 Thermo-analytical Methods -- 1.2.1 Differential Thermal Analysis and Differential Scanning Calorimetry -- 1.2.2 Thermogravimetry -- 1.2.3 Dilatometry and Thermomechanical Analysis -- 1.2.4 Dynamic Mechanical Thermal Analysis -- 1.2.5 Thermal Optical Analysis and In Situ Structural Assessment Under Controlled Thermal History -- 1.2.6 Dielectric Thermal Analysis (DETA) -- 1.3 Thermal Behaviour of Polymers -- 1.3.1 Semicrystalline Polymers -- 1.3.2 Amorphous Polymers -- 1.3.3 Liquid Crystalline Polymers -- 1.3.4 Polymer Degradation -- 1.3.5 Further Applications of Thermal Analysis in Polymer Science and Technology -- 1.4 Summary -- 1.5 Exercises -- References -- Chapter 2: Microscopy of Polymers -- 2.1 Introduction -- 2.2 Optical Microscopy -- 2.2.1 Fundamentals -- 2.2.2 Polarized Microscopy and Related Techniques -- 2.3 Electron Microscopy -- 2.4 Atomic Force Microscopy and Related Techniques -- 2.5 Novel Techniques in Polymer Microscopy -- 2.6 Preparation of Specimens for Microscopy -- 2.6.1 Preparation of Samples for Optical Microscopy -- 2.6.2 Preparation of Samples for Scanning Electron Microscopy -- 2.6.3 Preparation of Samples for Transmission Electron Microscopy -- 2.6.4 Preparation of Samples for Atomic Force Microscopy -- 2.6.5 Artificial Structures -- 2.7 Applications of Microscopy in Polymer Science and Engineering -- 2.7.1 Semicrystalline Polymers -- 2.7.2 Liquid Crystalline (LC) Polymers -- 2.7.3 Polymer Blends -- 2.7.4 Composites Including Nanocomposites -- 2.7.5 Native Polymers and Polymeric Biomaterials -- 2.8 Summary -- 2.9 Exercises -- References -- Chapter 3: Spectroscopy and Scattering of Radiation by Polymers -- 3.1 Introduction -- 3.2 Vibrational Spectroscopy -- 3.2.1 Fundamentals -- 3.2.2 IR and Raman Spectrophotometers. , 3.2.3 Quantitative Analysis -- 3.2.4 Sample Preparation -- 3.2.5 Applications of Vibrational Spectroscopy -- 3.3 Nuclear Magnetic Resonance (NMR) Spectroscopy -- 3.3.1 Fundamentals -- 3.3.2 Instrumentation -- 3.3.3 Polymer Applications of NMR Spectroscopy -- 3.4 Other Spectroscopic Methods -- 3.4.1 X-ray Photoelectron Spectroscopy (XPS) -- 3.4.2 Electron Spin Resonance Spectroscopy -- 3.4.3 UV-VIS Spectroscopy -- 3.5 Scattering Methods -- 3.5.1 Light Scattering -- 3.5.2 Wide-Angle X-ray Scattering -- 3.5.3 Small-Angle X-ray Scattering -- 3.5.4 Electron Diffraction -- 3.5.5 Neutron Scattering -- 3.6 Summary -- 3.7 Exercises -- References -- Chapter 4: Chromatographic Analysis of Polymers -- 4.1 Introduction -- 4.2 General Concepts in Chromatography -- 4.3 Size Exclusion Chromatography -- 4.3.1 Molar Mass and Molar Mass Distribution -- 4.3.2 Principles of SEC Systems -- 4.3.3 Separation in the SEC Column -- 4.3.4 Detection of the Eluting Molecules -- 4.3.5 Relative Narrow Standard Calibration -- 4.3.6 Universal Calibration -- 4.3.7 Sample Preparation for SEC -- 4.3.8 Molar Mass Averages from SEC Chromatograms -- 4.3.9 Development of New Coupled SEC Systems -- 4.4 High-Performance Liquid Chromatography -- 4.4.1 Principles of an HPLC System -- 4.4.2 Separation Modes in HPLC -- 4.5 Gas Chromatography -- 4.5.1 Principles of a GC System -- 4.5.2 Integrating GC with Mass Spectrometry (MS) -- 4.6 Qualitative and Quantitative Analysis by HPLC and GC -- 4.7 Sample Preparation Before GC or HPLC Analysis -- 4.8 Application of GC and HPLC for the Analysis of Polymers -- 4.9 Summary -- 4.10 Exercises -- References -- Chapter 5: Simulation and Modelling of Polymers -- 5.1 Introduction -- 5.2 Quantum Chemistry (QC) -- 5.2.1 QC: Overview -- 5.2.2 Computational Quantum Mechanics: Formalism -- 5.2.3 Molecular Orbital (MO) Methods, One-Electron Technique. , 5.2.4 Molecular Orbital (MO) Methods, Many-Electron Technique -- 5.2.5 Semi-empirical MO Methods -- 5.2.6 Ab Initio Methods -- 5.2.7 Density Functional Theory (DFT) -- 5.3 Molecular Dynamics (MD) -- 5.3.1 MD: Overview -- 5.3.2 Force-Field Potentials -- 5.3.3 Coarse-Graining -- 5.3.4 The Basic MD Algorithm -- 5.3.5 Ensembles -- 5.3.6 The Phase Space -- 5.3.7 A Practical MD Example: Diffusion -- 5.4 Monte Carlo Methods (MC) -- 5.4.1 MC: Overview -- 5.4.2 Importance Sampling: Metropolis Hastings and Biased Sampling -- 5.4.3 Macromolecular Starting Configurations with MC -- 5.4.4 Macromolecular Energy Minimization with MC -- 5.5 Mesoscale Modelling, Including Dissipative Particle Dynamics -- 5.6 Statistical Methods, Including Group-Contribution Methods -- 5.7 The Finite Element Method (FEM) -- 5.7.1 FEM: Introduction -- 5.7.2 Applied FEM -- 5.7.3 FEM: Mathematical Background -- 5.8 Summary -- 5.9 Exercises -- References -- Chapter 6: Mechanical Properties -- 6.1 Introduction -- 6.2 Stress -- 6.2.1 Normal stress and Shear Stress -- 6.2.2 The Stress Tensor -- 6.2.3 The Mohr Stress Circle -- 6.3 Strain -- 6.3.1 Introduction: Uniaxially Loaded Specimens -- 6.3.2 The Strain Tensor and Other Strain Concepts -- 6.3.3 The Mohr Strain Circle -- 6.4 Assessment of the Mechanical Properties -- 6.4.1 Introduction -- 6.4.2 Tensile Testing -- 6.4.3 Dynamic Mechanical Analysis, Dilatometry and Thermal Mechanical Analysis -- 6.4.4 Fracture Testing -- 6.4.5 Surface Mechanics Methods -- 6.5 Definition of Mechanical Parameters from the Tensile Test -- 6.5.1 The Stress-Strain Curve -- 6.5.2 The Stiffness and the Tensile Modulus -- 6.6 The Three-Dimensional View for Modulus and Strain -- 6.7 Energy During Deformation -- 6.7.1 Energy Stored During Elastic Deformation -- 6.7.2 Energy Transformed During Viscous Flow and Viscoelastic Deformation. , 6.8 Oriented Polymers and Multiaxial Stresses -- 6.9 Linear Viscoelasticity -- 6.9.1 The Spring and the Dashpot -- 6.9.2 The Maxwell (iso-Stress) Element -- 6.9.3 The Voigt-Kelvin (iso-Strain) Element -- 6.9.4 The Burgers Element and Other Linear Viscoelastic Models -- 6.10 Correlations Between Stress Relaxation and Dynamic Mechanical Data -- 6.10.1 From Stress Relaxation Modulus to Dynamic Mechanical Modulus -- 6.10.2 From Dynamic Mechanical Modulus to Dynamic Mechanical Compliance -- 6.11 Boltzmann Superposition Principle -- 6.12 The Influence of Strain Rate on the Viscoelastic Properties -- 6.13 The Influence of Temperature on the Viscoelastic Properties: Time-Temperature Shifting and Superposition -- 6.14 Non-linear Viscoelasticity as Illustrated with Creep Behaviour -- 6.15 Short-Term Mechanical Properties of Selected Polymers -- 6.16 Rubber Elasticity -- 6.17 Some Examples of Parameters Affecting the Mechanical Properties -- 6.18 Yielding of Polymers -- 6.18.1 Introduction -- 6.18.2 Theories of Yielding in Amorphous Polymers -- 6.18.3 Yielding in Semicrystalline Polymers -- 6.19 Fracture of Polymers -- 6.19.1 Introduction and the Brittle-Ductile Transition -- 6.19.2 Fracture Mechanics -- 6.19.3 Ductile Failure -- 6.19.4 Creep Failure -- 6.19.5 Impact Failure -- 6.19.6 Dynamic Fatigue Failure -- 6.20 Cellulose Fibre Systems and Related Materials -- 6.21 Summary -- 6.22 Exercises -- References -- Chapter 7: Transport Properties of Polymers -- 7.1 Introduction -- 7.2 Diffusion -- 7.2.1 Basics of the Random Walk -- 7.2.2 The Velocity Autocorrelation Function -- 7.2.3 Diffusion -- Temperature and Solute Size -- 7.3 Solubility -- 7.4 Fick´s Laws of Diffusion -- 7.5 Methods of Solution of the Diffusion Equation -- 7.6 Transport Properties of Elastomers and Melts -- 7.6.1 Introduction -- 7.6.2 Models of Diffusion in Elastomers. , 7.6.2.1 Molecular Models -- 7.6.2.2 Free Volume Models -- 7.7 Transport Properties of Semicrystalline Polymers -- 7.7.1 Geometrical Effects of Crystals -- 7.7.2 Molecular Constraints -- 7.8 Concentration-Dependent Diffusivity and Swelling in Flexible Polymers -- 7.9 Transport Properties of Glassy Polymers -- 7.9.1 Introduction -- 7.9.2 Dual Solubility Model -- 7.9.3 The Dual Mobility Model -- 7.9.4 Anomalous and Case II Diffusion -- 7.10 Barriers and Membranes -- 7.10.1 Barriers -- 7.10.2 Membrane Separation -- 7.10.2.1 Liquid Separation -- 7.10.2.2 Gas Separation -- 7.11 Techniques for Measuring Permeability, Diffusivity and Solubility -- 7.12 Heat Transfer -- 7.12.1 The Heat Equations -- 7.12.2 Surface Boundary Heat Conditions -- 7.13 Summary -- 7.14 Exercises -- References -- Chapter 8: Processing of Polymeric Materials -- 8.1 Introduction -- 8.2 Polymer Processing: A Complex Applied Polymer Science Discipline -- 8.3 Compounding -- 8.4 Injection Moulding -- 8.5 Extrusion and Associated Techniques -- 8.6 Thermoforming -- 8.7 Producing Hollow Objects: Rotational Moulding and Blow Moulding -- 8.8 Compression Moulding -- 8.9 Calendering -- 8.10 Additive Manufacturing -- 8.10.1 Steps in the Development of Digital Model -- 8.10.2 3D Printing Methods for Polymers -- 8.11 Summary -- 8.12 Exercises -- References -- Chapter 9: Plastics and Sustainability -- 9.1 Introduction -- 9.2 Contribution of Plastics to Sustainable Society -- 9.3 Bio-based Materials -- 9.3.1 Thermoplastic Materials Derived from Bio-based Monomers -- 9.3.2 Biopolymer-Based or Biopolymer-Derived Thermoplastics -- 9.3.3 Bio-based Thermosets and Coatings -- 9.3.4 Production of Polymers from Waste-Greenhouse Gases -- 9.3.5 Challenges and Opportunities for Bio-based Materials -- 9.4 End-of-Life Management: From Waste to Resource -- 9.4.1 Polymer Loop: Mechanical Recycling. , 9.4.2 Monomer and Molecule Loops: Chemical Recycling.
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Macromolecules 20 (1987), S. 988-992 
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Macromolecules 23 (1990), S. 1041-1047 
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Macromolecules 22 (1989), S. 1683-1689 
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary Glassy liquid crystalline poly(p-hydroxy-benzoic acid-co-ethylene terephthalate) is after rapid cooling from temperatures above Tg in a non-equilibrium state and exhibits physical ageing. It is shown that enthalpy and volume decrease with increasing annealing time. At the same undercooling, with respect to middle temperature of the major glass transition (Tgl), the rate of the equilibration process is significantly slower in the studied polymer than in an ordinary glassy amorphous polymer. The presence of a constraining ETP-rich phase exhibiting a 25 K higher glass temperature than Tgl may be the cause for this retarded enthalpy relaxation.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The microstructure of injection molded bars (2.9 and 5.8 mm thick) of thermotropic liquid crystalline poly(p-hydroxy-benzoic acid-co-ethylene terephthalate) has been studied by SEM on samples etched with n-propylamine, SEM fractography, DSC, IR, ESCA, WAXS and polarized microscopy. The 2.9 mm bar consists of three different layers: a highly oriented surface skin, an oriented intermediate layer and a non-oriented core. The 5.8 mm bar has a more complex microstructure and is composed of five different layers: a highly oriented surface skin, an oriented layer just beneath, a non-oriented layer, another oriented layer and a non-oriented core. The thicknesses of the different layers vary, significantly, with distance from the mold gate. The thickness of the core increases, significantly, with increasing distance from the mold gate at the expense of the oriented layers. The structure within the different morphological layers is not perfectly uniform. Tensile testing demonstrated the mechanical anisotropy of the surface material (a ratio of almost 20 between the longitudinal and transverse moduli) and the isotropy of the central core material.
    Additional Material: 15 Ill.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1022-1352
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The synthesis and cationic polymerization of the new monomer 4-(2,2-dicyanovinyl)-4′-(11-vinyloxyundecyloxy)biphenyl (6) is described. The dicyanovinyl group tolerated thermally initiated and photoinitiated cationic bulk polymerization using onium salts as well as the BF3 · (EtO)2-initiated solution polymerization in CH2Cl2 at -15°C. Monomer 6 was crystalline, whereas poly(6) with increasing temperature exhibited coexisting SAd and SC phases, an SAd phase with extensive thermal stability and an isotropic phase. Poly(6) exhibited a glass transition at 20°C.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Macromolecular Chemistry and Physics 196 (1995), S. 3667-3676 
    ISSN: 1022-1352
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The synthesis of the following monofunctional and bifunctional liquid crystalline p-vinylphenoxy-based monomers is described: 4-methoxyphenyl 4-[11-(4-vinylphenoxy)-undecyloxy]benzoate (1), 4-cyanophenyl 4-[11-(4-vinylphenoxy)undecyloxy]benzoate (2) and 3-(4-vinylphenoxy)propyl 4-{4-[11-(4-vinylphenoxy)undecyloxy]benzoyloxy}benzoate (3). Both free radical and cationic polymerization of the monofunctional monomers 1 and 2 yielded side-chain liquid crystalline polymers exhibiting smectic A mesomorphism. The polymers exhibited high molar masses (Mn = 40000 - 100000 g/mol) and relatively narrow molar mass distributions (Mw/Mn between 1.5 and 3). Ordered thin films were prepared by in-situ photopolymerization of monomers 1, 2 and 3 oriented in their nematic mesophases. Thin films of a thermally stabilized ordered side-chain liquid crystalline polymer were prepared by copolymerization of the monofunctional monomer 1 and the bifunctional monomer 3, the latter present in low concentration. The films regained orientation when cooled down from temperatures above the isotropization point (137°C) as evidenced by polarized FT-Raman measurements.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 0887-6266
    Keywords: Poly(oxy-1,4-phenyleneoxyxylyleneoxy-1,4-phenyleneoxyundecamethylene) ; conformational disorder ; liquid crystal ; condis crystal ; 13C NMR ; γ-gauche effect ; DSC ; entropy ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: A thermotropic main-chain polyether based on bis(4-hydroxyphenoxy)-p-xylylene and 1,11-dibromoundecane has been studied by variable-temperature solid-state 13C NMR. Between isotropization and glass transition temperatures, the material can be identified to be semicrystalline, consisting of two conformationally and motionally distinguishable phases. The more mobile component is liquid-like and thus, can be attributed to an amorphous phase. In the more rigid component, the molecules have a conformationally disordered methylene sequence. In the low-temperature ordered phase approximately ⅔ of the carbon-carbon bonds are trans (t). Starting from the bond between the oxygen and the first methylene carbon, the bond conformations are: d—t—d—t—t—t—t—t—t—d—t—d, where d stands for disordered (i.e., it represents the common dynamic interchange between gauche and trans with an overall gauche content of perhaps 40%). The motion of the αα′-diphenoxy-p-xylylene unit consists mainly of 180° ring-flips, which cause no entropy increase relative to ordered phenylene groups in a crystal, but significantly changes the 13C NMR spectra. The central p-xylylene ring starts its flipping motion at a lower temperature than the two phenoxy rings. The high-temperature mesophase contains a methylene sequence of the bond conformations: d—t—d—d—d—t—t—d—d—d—t—d. Thus, the difference between the low-temperature and high-temperature mesophases consists of different degrees of conformational disorder. Thermal analysis seems to indicate that additional mesophases may be possible. © 1994 John Wiley & Sons, Inc.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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