Interfacial thickness in bilayers of poly(phenylene oxide) and styrenic copolymers |
| |
| Authors: | G D Merfeld A Karim B Majumdar S K Satija D R Paul |
| |
| Institution: | 1. The University of Texas at Austin, Center for Polymer Research, Austin, Texas 78712;2. Polymers Division, NIST, Gaithersburg, Maryland 20899;3. General Electric Plastics, Selkirk, New York 12158;4. Reactor Division, NIST, Gaithersburg, Maryland 20899 |
| |
| Abstract: | Estimates for the thickness of the interface between poly (2,6-dimethyl-1,4-phenylene oxide) (PPO) and copolymers of styrene–acrylonitrile (SAN) and styrene–maleic anhydride (SMA) based on the theory of Helfand and Tagami are compared to neutron reflectivity (NR) measurements. Good agreement is found between the NR measurements and theoretical predictions that make use of a mean field binary interaction model and previously reported binary interaction energies. The techniques outlined in this work may be used to understand relationships between the mechanical properties of multiphase polymer blends and the fundamental thermodynamics of polymer interactions. © 1998 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 36: 3115–3125, 1998 |
| |
| Keywords: | interfacial thickness PPO SAN SMA neutron reflectivity NR binary interaction energies |
|
|
