Polymer Conformation and Configuration

ForewordAuthor's PrefaceChapter I. The Configuration of Vinyl Polymer Chains 1. Molecular Symmetry and Its Observation by NMR 2. Polymer Spectra: Polymethyl Methacrylate 3. The Effect of Polymerization Temperature 4. Polyvinyl Chloride 5. Polystyrene 6. Polyisopropyl Acrylate 7. Polypropylene References for Chapter IChapter II. Configurational Sequences and the Mechanism of Vinyl Propagation 1. Sequence Statistics 2. The Coleman-Fox Propagation Mechanism 3. The Direction of Addition to the Double Bond; ß-Carbon Stereochemistry 4. The Significance of Cis and Trans Addition and the Nature of the Propagation Species References for Chapter IIChapter III. The Observation of Polymer Chain Conformation by NMR 1. Model Compound Conformations 2. The Averaging of Vicinal Couplings 3. Conformer Populations a. Meso 2,4-Disubstituted Pentanes b. Racenic 2,4-Diphenylpentane 4. 2,4,6-Trisubstituted Heptanes 5. Polymer Chain Conformation a. Polystyrene b. Polyacrylates c. Polyethylene Oxide References for Chapter IIIChapter IV. Optical and NMR Studies of the α-Helix and the Helix-Coil Transition 1. Introduction 2. Circular Birefringence 3. Circular Dichroism 4. Molecular Origin of Optical Activity 5. The Dependence of Circular Birefringence and Circular Dichroism on Wavelength: Cotton Bands 6. Band Overlap in ORD and CD Spectra 7. The α-Helix 8. NMR Observations of the α-Helix-Random Coil Transition 9. Correlation of NMR and CD Observations 10. Origin of the Helix-Coil Transition References for Chapter IVChapter V. The Conformation of N-Disubstituted Polypeptide Chains 1. Poly-L-Proline 2. Poly-L-Acetoxyproline 3. Poly-N-Methyl-L-Alanine 4. Polysarcosine References for Chapter VAuthor IndexSubject Index