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In August, 1996, the ACS Division of Polymeric Materials: Science and Engineering hosted a symposium on Interfacial Aspects of Multicomponent Polymer Materials at the Orlando, Florida, American Chemical Society meeting. Over 50 papers and posters were presented. The symposium proper was preceded by a one-day workshop, where the. basics of this relatively new field were developed. This edited book is a direct outcome of the symposium and workshop. Every object in the universe has surfaces and interfaces. A surface is defined as that part of a material in contact with either a gas or a vacuum. An interface is defined as that part of a material in contact with a condensed phase, be it liquid or solid. Surfaces of any substance are different from their interior. The appearance of surface or interfacial tension is one simple manifestation. Polymer blends and composites usually contain very finely divided phases, which are literally full of interfaces. Because interfaces are frequently weak mechanically, they pose special problems in the manufacture of strong, tough plastics, adhesives, elastomers, coatings, and fibers. This book provides a series of papers addressing this issue. Some papers delineate the nature of the interface both chemically and physically. The use of newer instrumental methods and new theories are described. Concepts of interdiffusion and entanglement are developed. Other papers describe state-of-the-art approaches to improving the interface, via graft and block copolymers, direct covalent bonding, hydrogen bonding, and more.
List of contents
to Interfacial Aspects of Multicomponent Polymer Materials.- Improved Compatibilization of Immiscible Homopolymer Blends Using Copolymer Mixtures.- Brownian Motion Simulation of Chain Pullout: Modeling Fracture in Polymer Blends.- Polyelectrolytes at Interfaces: Pattern Recognition.- Real-Space Studies on Interface in a Phase-Separated Polymer Blend by Laser Scanning Confocal Microscopy.- Interfacial Characteristics of Amorphous Polystyrene and Binary Polymer Blend Thin Films Based on Scanning Force Microscopy.- Solid State NMR Studies of Polymer Interfaces.- Adsorption and Wetting from Tunable Polyolefin Mixtures.- Strength of the PC-SAN Interface as Determined by Delamination of Polymer Microlayers.- The Formation of Polymer Monolayers: From Adsorption to Surface Initiated Polymerizations.- Changes of Interfacial Adhesion by the Addition of Reactive Polymers.- Pulsed NMR Studies on the Interfacial Structure of the Block Copolymers of Styrene and Isoprene with Variable Interface.- Compatibilization of HDPE/PS Blends by Tapered Diblock PE-PS Copolymers.- Compatibilizer-Phase Morphology-Mechanical Property Relationships of Multicomponent Heterophase Polymer Blends.- Wettabilities and Adhesive-Autohesive Properties of Poly(Tetrafluoroethylene) Surfaces Photografted with Hydrophilic Monomers.- Siloxane Terpolymers as Compatibilizers for Polymer Blends.- Interfacial Strengthening with Random Copolymers.- Molecular Design of Reactive Compatibilizers for Polypropylene-Nitrile Butadiene Rubber Blends.- Transition-Metal Compatibilization of Polymer Blends.- Development of Optical Fiber/Polymer Interface for Immobilized Sensors.- Characterization of Multilayered Automotive Paint Systems Including Depth Profiling and Interface Analysis.
About the author
L. H. SPERLING is Professor of Chemical Engineering and Materials Science and Engineering, and Director of the Polymer Laboratory at Lehigh University in Bethlehem, Pennsylvania.
Summary
Proceedings of an American Society Symposium held in Orlando, Florida, August 25-30 1996
