New Trends in Physics and Physical Chemistry of PolymersBetween June 6-10, 1988, the Third Chemical Congress of North America was held at the Toronto Convention Center. At this rare gathering, fifteen thousand scientists attended various symposia. In one of the symposia, Professor Pierre-Gilles de Gennes of College de France was honored as the 1988 recipient of the Amer ican Chemical Society Polymer Chemistry Award, sponsored by Mobil Chemical Corporation. For Professor de Gennes, this international setting could not be more fitting. For years, he has been a friend and a lecturer to the world scientific community. Thus, for this special occasion, his friends came to recount many of his achievements or report new research findings mostly derived from his theories or stimulated by his thoughts. In this volume of Proceedings, titled New Trends in Physics and Physical Chemistry of Polymers, we are glad to present the revised papers for the Symposium and some contributed after the Symposium. In addition, we intend to include most of the lively discussions that took plaGe during the conference. This volume contains a total of thirty-six papers divided into six parts, primarily according to the nature of the subject matter: • Adsorption of Colloids and Polymers. • Adhesion, Fractal and Wetting of Polymers. • Dynamics and Characterization of Polymer Solutions. • Diffusion and Interdiffusion of Polymers. • Entanglement and Reptation of Polymer Melts and Networks. • Phase Transitions and Gel Electrophoresis. |
Contents
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19 | |
Displacement of Homopolymer From a Surface by a Block Copolymer | 41 |
The Modification of Surface Forces by Grafted Polymer Chains | 47 |
Persistence Length in Microemulsion Systems | 57 |
The Interfacial | 63 |
Chiral Discrimination in Monolayer Packing of Hexadecanol | 81 |
Discussion | 89 |
Discussion | 307 |
Diffusion in Block Copolymers and Isotopic Polymer Mixtures | 319 |
Polystyrene | 345 |
Selfdiffusion of Polydimethylsiloxane Chains | 355 |
Chain Segment Ordering in Strained Rubbers | 367 |
Viscoelasticity and Selfdiffusion in Miscible Heteropolymer Blends | 375 |
Discussion | 385 |
Reptation | 397 |
New Perspectives on Polymer Adhesion Mechanisms | 95 |
Dynamics and Fractal Structure of Polymer Interfaces | 129 |
Size Exclusion Chromatography and Surface Effects in Porous Fractals | 137 |
Role of Long | 159 |
Wetting Phenomena | 171 |
Applications of HardSoft AcidBase HSAB Principle to Solid | 185 |
Discussion | 201 |
PolymerPolymerGood Solvent | 229 |
Excimer Studies of Polymer Solutions Over the Entire Concentration | 239 |
A Study by Neutron Reflection | 255 |
Theory of Dynamic Screening in Macromolecular Solutions | 269 |
Tracer Diffusion in Polymerlike Networks | 285 |
Dynamical Properties of Semidilute Polymer Solutions at the Theta | 293 |
The Entanglement Concept in Polymer Physics Revisited | 419 |
Repton Model of Entangled Polymers | 455 |
On the Effect of Positional Order on the Scattering | 471 |
Calculation of Elastic SmallAngle Neutron Scattering from Labeled | 483 |
Discussion | 497 |
Percolation Type Growth Process of Clusters Near the Gelation | 531 |
The Biased Reptation Model of DNA Gel Electrophoresis | 547 |
FINAL REMARKS | 601 |
ABOUT THE CONTRIBUTORS | 625 |
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Common terms and phrases
adhesion adsorbed adsorption average behavior blend calculated capillary capillary wave Chem chemical concentration profile conformation copolymer corresponds critical crosslinked curve d-PS degree of polymerization density dependence diffusion coefficient dilute solution distance distribution dynamics effect electrophoresis entanglements equation equilibrium experimental experiments exponent factor field fluctuations fractal dimension free energy function homopolymer interface L.H. Lee layer Lett linear liquid Macromolecules macroscopic measured micelles mobility modulus molecular weight molecules monomer motion neutron number of monomers observed obtained P.G. de Gennes PDMS phase Phys PMMA polydispersity polymer chain polymer melts polymer solutions polymerization polystyrene pore precursor film predicted properties pulse radius of gyration ratio regime relaxation reptation model repton sample scaling law scattering segments self-diffusion semidilute solutions solid solvent structure surface temperature ternary theory thickness tube vector velocity virial coefficient viscosity volume fraction