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Dedication | ||
Preface | ||
Chapter 1 | Introduction | 1 |
1.1 | Background | 1 |
1.2 | Linear Chain Molecules | 4 |
1.2.1 | Structure | 4 |
1.2.2 | Synthesis | 8 |
1.2.3 | Molecular Weight | 10 |
1.3 | Network Molecules | 15 |
1.3.1 | Structure | 15 |
1.3.2 | Synthesis | 16 |
1.3.3 | Molecular Weight | 16 |
1.4 | Rubber | 17 |
1.4.1 | Structure | 17 |
1.4.2 | Synthesis | 21 |
1.4.3 | Molecular Weight | 21 |
1.5 | Multicomponent Systems | 21 |
1.5.1 | Copolymers | 21 |
1.5.2 | Polyblends | 25 |
1.5.3 | Composites | 25 |
1.5.4 | Ceramers | 26 |
References | 27 | |
Appendix 1A | Derivation of the Most Probable Distribution | 28 |
Reference | 30 | |
Chapter 2 | Statistics of Chain Conformations | 31 |
2.1 | Introduction | 31 |
2.2 | Small Molecules | 31 |
2.3 | Larger Molecules, Statistical Variation of Molecular Conformations | 40 |
2.4 | Statistical Segment Model | 41 |
2.5 | Generalization to High Polymers | 44 |
2.6 | Polymer Chains Containing Two Kinds of Atoms | 45 |
2.7 | Model Chains with Restricted Rotation and No Interaction Among the [phi]'s | 47 |
2.8 | Rotational Isomeric State (RIS) Approximation | 49 |
2.9 | Chains with Interactions between [phi] Values of Neighboring Monomers | 51 |
2.10 | Asymmetric Barriers | 53 |
2.11 | Comparison with Experiment | 56 |
2.12 | Chain End-to-End Distribution Functions | 58 |
2.12.1 | One Dimensional Case | 58 |
2.12.2 | Extension to a Three Dimensional Chain | 61 |
2.12.3 | Extension to Non-Gaussian Case | 64 |
References | 71 | |
Appendix 2A | Statistical Mechanics | 73 |
References | 80 | |
Statistical Thermodynamics of an Ideal Monatomic Gas | 81 | |
Appendix 2B | Vector Analysis | 83 |
2B.1 | Vector Addition | 83 |
2.B.2 | Scalar Product | 84 |
Reference | 85 | |
Appendix 2C | Radius of Gyration | 86 |
Appendix 2D | Evaluation of (a[subscript m+n] [middle dot] a[subscript m]) | 92 |
Appendix 2E | Restricted Rotation with Symmetrical Barrier | 99 |
Appendix 2F | Rotational Isomeric State (RIS) Approximation | 103 |
2F.1 | Introduction | 103 |
2F.2 | The Conformational Partition Function | 104 |
2E.3 | Mean Square Distance | 106 |
References | 107 | |
Appendix 2G | Random Walk of Gaussian Chains | 109 |
References | 113 | |
Appendix 2H | Radius of Gyration, Size and Shape | 114 |
Definition of | 114 | |
115 | ||
116 | ||
Determination of | 117 | |
Chapter 3 | Thermodynamics | 121 |
3.1 | Introduction | 121 |
3.2 | Thermodynamics of Elasticity | 121 |
3.3 | Force on a Chain in the Presence of Energy Contributions to Elasticity | 129 |
3.4 | Solution Thermodynamics | 134 |
3.4.1 | Flory-Huggins Theory | 134 |
3.4.2 | Calculation of P[subscript 2] | 138 |
3.3.3 | Entropy of Mixing | 140 |
3.5 | Polymer Miscibility | 145 |
3.6 | Spinodal Decomposition | 147 |
3.7 | Heat Capacity | 153 |
3.8 | Thermodynamics of Crystallization | 154 |
3.8.1 | Polymer Structure - Melting Point | 155 |
3.8.2 | Effect of Diluent and Impurities | 157 |
3.8.3 | Crystallization Induced by Stretching | 164 |
References | 167 | |
Appendix 3A | Classical Thermodynamics | 169 |
References | 175 | |
Appendix 3B | Heat of Mixing | 176 |
Appendix 3C | Osmotic Pressure | 181 |
Chapter 4 | Optics | 185 |
4.1 | Introduction | 185 |
4.2 | Nature of Electromagnetic Waves | 186 |
4.3 | Refraction | 187 |
4.4 | Scattering | 191 |
4.4.1 | Intensity of Light Scattering for an Isolated Atom or Molecule | 194 |
4.4.2 | Effect of the Polarization of Light | 195 |
4.4.3 | The Scattering Intensity for a Collection of Scattering Objects | 196 |
4.5 | Diffraction | 205 |
4.5.1 | The Reciprocal Lattice | 205 |
4.5.2 | Interpretation of the Vector Bragg Equation | 208 |
4.5.3 | The Distance Between Crystal Planes | 209 |
4.5.4 | The Diffraction Phenomenon in One Dimension | 211 |
4.6 | Absorption | 215 |
4.7 | Fluorescence | 216 |
4.8 | Birefringence | 218 |
4.9 | Scattering from Inhomogeneous Media | 222 |
4.10 | Quasi-elastic Light Scattering | 228 |
4.11 | Variation of Scattering with Electric Fields | 229 |
4.12 | Non-Linear Optics | 230 |
4.13 | Piezo-Electric Materials | 232 |
4.14 | Kerr Effect | 233 |
References | 234 | |
Appendix 4A | Depolarization of Scattering | 236 |
Appendix 4B | Scattering from a Collection of Molecules | 239 |
Appendix 4D | The Magnitude of the Reciprocal Vector H | 244 |
Appendix 4E | Orientation Fluctuations | 246 |
Appendix 4F | Scattering from Concentration Fluctuations | 249 |
Evaluation of ([partial differential alpha]/[partial differential]c) | 252 | |
Evaluation of [-([partial differential mu subscript 1]/[partial differential]c)] | 252 | |
Molecular Weight from Light Scattering | 253 | |
Dealing with Large Molecules | 255 | |
Extensions to Other Kinds of Radiation | 256 | |
Extensions to Concentrated Solution and Bulk Polymers | 257 | |
Effect of Anisotropy and Orientation | 257 | |
Appendix 4G | Why Concentration Fluctuations Relate to Molecular Weight | 257 |
How to Measure the Size of an Elephant | 258 | |
Another Way of Looking at it - | 260 | |
Chapter 5 | Electrical Properties | 263 |
5.1 | Introduction | 263 |
5.2 | Dielectrics | 264 |
5.2.1 | Dielectric Constant | 264 |
5.2.2 | Orientation of permanent dipoles | 269 |
5.2.3 | Dielectric Loss | 269 |
5.3 | Piezo- and Pyroelectric Effects | 272 |
5.4 | Piezo-Electric Coefficient | 274 |
References | 276 | |
Appendix 5A | Lines of Flux | 278 |
5A.1 | Electrical Field Strength | 278 |
5A.2 | Electric displacement and Flux Density | 278 |
5A.4 | The Electrostatic Potential (Voltage) | 280 |
5A.5 | The Field between Parallel Plates | 280 |
Appendix 5B | Lorentz Calculation, Internal Field Correction | 282 |
Chapter 6 | Spectroscopy | 285 |
6.1 | Introduction | 285 |
6.2 | General Background | 286 |
6.3 | Infrared | 288 |
6.4 | Raman | 295 |
6.5 | Ultraviolet and Visible | 299 |
6.6 | Nuclear Magnetic Resonance | 300 |
6.7 | Neutron Inelastic Scattering (NIS) | 301 |
References | 303 | |
Appendix 6A | Fourier Transform Infrared (FTIR) | 305 |
References | 307 | |
Appendix 6B | Normal Coordinate Analysis | 308 |
References | 312 | |
Appendix 6C | Spectrographic Notation | 313 |
Chapter 7 | The Rubbery State | 314 |
7.1 | Introduction | 314 |
7.2 | Force - Extension Relation for Rubbers | 316 |
7.2.1 | Simple Case | 316 |
7.2.2 | Consideration of Network Crosslinks | 318 |
7.3 | Affine Transformation | 322 |
7.4 | Uniaxial Stretching at Constant Volume | 329 |
7.5 | Biaxial Stretching at Constant Volume | 331 |
7.6 | Application to the Inflation of a Balloon | 333 |
7.7 | Network Defects - The Relationship between N[subscript c] and v | 334 |
7.8 | Effect of Swelling on an Isotropic Network | 336 |
7.9 | Elastic Properties of Swollen Rubber | 339 |
7.10 | Elasticity of a Sample That is Swollen When Crosslinked | 341 |
7.11 | Elasticity of Rubbers at Small Extensions | 343 |
7.12 | Guth-Smallwood Equations | 347 |
References | 348 | |
Appendix 7A | Evaluation of Equation 7.30 | 350 |
Chapter 8 | The Crystalline State | 352 |
8.1 | Introduction | 352 |
8.2 | Evidence for Crystallinity | 354 |
8.2.1 | X-Ray Diffraction | 354 |
8.2.2 | Electron Microscopical Observations | 358 |
8.2.3 | Optical Microscopy | 359 |
8.2.4 | Thermodynamic Transitions | 360 |
8.3 | Determination of Degree of Crystalline | 361 |
8.3.1 | Density Measurements | 361 |
8.3.2 | X-Ray Diffraction | 364 |
8.3.3 | Infrared (IR) and Raman | 365 |
8.3.4 | Wide Line Nuclear Magnetic Resonance | 366 |
8.3.5 | Thermal Measurements | 368 |
8.4 | Morphology | 369 |
8.4.1 | Electron Microscope | 369 |
i) | The observed pyramidal structure | 369 |
ii) | Moire Patterns | 370 |
i) | Density | 370 |
ii) | nmr | 371 |
iii) | X-ray diffraction | 371 |
iv) | Kinetics | 371 |
8.4.2 | Optical Microscopy | 372 |
8.4.3 | Liquid Crystals | 373 |
8.5 | Mechanisms of Crystallization | 375 |
8.5.1 | Nucleation and Growth | 375 |
8.6 | Kinetics of Crystallization | 376 |
8.6.1 | Temperature Dependence of the Nucleation Rate | 376 |
8.6.2 | Nucleation and Growth | 379 |
8.6.3 | Experimental Determination of n and k | 384 |
i | Slope-Intercept Method | 384 |
ii | Half-life Method | 385 |
8.6.4 | Temperature Dependence of the Rate of Homogeneous Crystallization | 386 |
References | 387 | |
Glossary of Symbols Arranged by Chapters | 389 | |
Chapter 1 | 389 | |
Chapter 2 | 389 | |
Chapter 3 | 392 | |
Chapter 4 | 396 | |
Chapter 5 | 398 | |
Chapter 7 | 402 | |
Chapter 8 | 403 | |
Index | 407 |
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