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    Hyperbranched polymers : macromolecules in between deterministic linear chains and dendrimer structures / Albena Lederer, Walther Burchard.

    • Title:Hyperbranched polymers : macromolecules in between deterministic linear chains and dendrimer structures / Albena Lederer, Walther Burchard.
    •    
    • Author/Creator:Lederer, Albena, author.
    • Other Contributors/Collections:Burchard, W., author.
    • Published/Created:Cambridge, UK : Royal Society of Chemistry, [2015]
    • Holdings

       
    • Library of Congress Subjects:Polymers.
    • Description:230 pages illustrations 24 cm
    • Series:RSC polymer chemistry series.
    • Summary:There is great commercial interest in hyperbranched polymers from manufacturers of polymer formulations, additives and coatings, polymer electronics and pharmaceuticals. However, these polymers are difficult to characterize due to their very complex, multidimensional distribution and there is a great need to understand how to control their synthesis to obtain certain material properties. Hyperbranched Polymers is the first book to examine in detail the recent advances in the characterization of hyperbranched polymers. Focusing on the on the structural characterization of hyperbranched polymers, the book summarizes the research in the field and makes a direct correlation between the chemical structure and global molecular properties. This correlation is essential for understanding the structure-properties relation and fill: the gap between the synthetic advances and physico-chemical understanding of this polymer class. Written by acknowledged experts in the field, the book will appeal to both scientists working in fundamental research, as well as industrial manufacturers of dendritic polymers.
    • Notes:Includes bibliographical references and index.
    • ISBN:9781849733946 hardcover
      1849733945 hardcover
    • Contents:Machine generated contents note: 1.1. Overview
      1.2. Branched Polymers
      1.2.1. Dendrimers
      1.2.2. Hyperbranched Polymers
      1.2.3. Dendritic Hybrids
      1.3. Why Solution Properties?
      References
      2.1. Definition of Branching
      2.1.1. Contraction Factors
      2.1.2. Degree of Branching
      2.1.3. Correlation Between the Degree of Branching and Contraction
      2.2. Determination of the Degree of Branching
      2.2.1. Analysis by Spectroscopic Approaches
      2.2.2. Influence of the Synthetic Approach on the Degree of Branching
      2.2.3. Side Reactions and the Degree of Branching
      References
      3.1. Introduction
      3.2. Tuning the Degree of Branching
      3.2.1. AB2 + AB Approach
      3.2.2. AB2 + ABB* Approach
      3.2.3. Pseudo-dendrimers by AB2 Modification
      3.3. Control over Molar Mass
      3.4. Variation of End-group Functionality
      References
      4.1. Determination of Absolute Molar Mass
      4.2. Suitability of the Separation Technique
      4.3. Novel Separation Methods for Dendritic Polymers
      4.3.1. Separation According to Degree of Branching
      4.3.2. Elution Properties Depending on Functionality
      References
      5.1. General Remarks
      5.2. Determination of the Kuhn-Mark-Houwink- Sakurada Dependency
      5.3. Viscosity Behaviour of Dendritic Polymers
      5.3.1. Dendrimers
      5.3.2. Hyperbranched Polymers
      5.3.3. Pseudo-dendrimers
      5.3.4. Dendronized Polymers
      5.4. Influence of Chemical Structure on Viscosity Behaviour
      5.4.1. Influence of the Backbone Character
      5.4.2. Influence of Functionality
      5.5. Influence of Segmental Density on Viscosity and Scaling Characteristics
      5.5.1. Gradually Increasing Statistical Branching
      5.5.2. Pseudo-dendrimers with Increasing Generation
      References
      6.1. Introduction
      6.2. Search for Non-invasive Structure Characterization
      6.2.1. Microscopy
      6.2.2. 'theology
      6.2.3. Sedimentation by Ultracentrifugation
      6.2.4. Application of Light
      6.3. Static Light Scattering
      6.3.1. Scattered Light from Point-like Scattering Units: Correlation to Density and Concentration Fluctuations
      6.3.2. Effect of Polarization
      6.3.3. Scattering from Particles of Dimensions > λ/20
      6.3.4. Molar Mass and Radius of Gyration
      6.3.5. Summary: Static Light Scattering
      6.4. Global Parameters
      6.4.1. Mean Square Radius of Gyration
      6.4.2. Fractal Behaviour
      6.4.3. Concentration Dependence
      6.4.4. Some Properties of the Second Virial Coefficient
      6.4.5. Self-similarity
      6.5. Dynamic Light Scattering
      6.5.1. Introduction
      6.5.2. Short Outline of the History of the Development of Optics
      6.5.3. Brownian Motion and its Relation to Stochastic Processes
      6.5.4. Time Correlation Functions
      6.5.5. Comment on Averages and the Effect of External Forces
      6.5.6. Time Correlation Function in Dynamic Light Scattering
      6.5.7. Flexible Particles: Linear and Branched Macromolecules in Solution
      6.5.8. Small Particles: Proteins
      6.5.9. Polydispersity and the Effects of Cluster Formation
      6.5.10. Electrophoretic/Dynamic Light Scattering
      6.5.11. Concentration Dependence
      6.5.12. Summary: Dynamic Light Scattering
      6.6. Effects of Heterodyne Light Scattering
      6.7. Appendix: Aspects of Modern Theory of Segmental Dynamics
      6.8. Recommended Literature
      References
      7.1. Introduction
      7.2. Conformation Properties of Branched Polymers in the Light of a General Branching Theory
      7.2.1. Some General Remarks
      7.2.2. Basic Properties of the General Branching Theory
      7.2.3. Generating Functions of Probable Distributions
      7.2.4. Randomly Branched Polymers
      7.3. Angular Dependence of Scattered Light
      7.3.1. General Scheme
      7.3.2. Radius of Gyration
      7.3.3. Hydrodynamic Radius
      7.3.4. AB2 Hyperbranched Samples
      7.3.5. Degree of Polymerization and Global Structure Parameters
      7.3.6. Summary: Unperturbed Conformations
      7.4. Effects of Excluded Volume
      7.4.1. Introduction: What Does Volume Exclusion Mean?
      7.4.2. Flory Expansion Factor
      7.4.3. Size Distribution of Real Chains
      7.4.4. Particle Scattering Factor, P(q)
      7.4.5. Fractal Approach to Fits of Measured Particle Scattering Factors
      7.4.6. Radius of Gyration and Hydrodynamic Radius of Branched Macromolecules in Good Solvents
      7.5. Summary
      References
      8.1. Molecular Properties in a Global Scale
      8.1.1. General Comments
      8.1.2. Molecular Parameters
      8.1.3. Generalized Ratios of Molecular Parameters
      8.1.4. Contraction Parameters Related to Branching
      8.1.5. Molar Mass Distribution
      8.1.6. Pending Problems to be Solved
      8.1.7. Fractal Approach
      8.1.8. Percolation on a Lattice
      8.1.9. Characteristics of Size Exclusion Chromatography Diagrams
      8.1.10. Angular Dependence of Scattering Curves from Measurements and Theoretical Prediction
      8.2. Addendum
      8.3. Summary
      References
      9.1. Bulk Properties in Flow and in Thin Films
      9.2. Thermal Properties
      9.2.1. Influence of the Degree of Branching
      9.2.2. Influence of the Molar Mass
      9.2.3. Influence of the End Groups
      References.
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