Polymer-polymer miscibility

Polymer-polymer miscibility

The theoretical and practical aspects of polymer-polymer miscibility in the solid amorphous state are reviewed. The polymers include homopolymers and both random and block copolymers. Although present theoretical treatments of polymer-polymer miscibility all contain the random mixing hypothesis and are thus not applicable to mixtures that involve specific interactions between the components, mo...

A simple approach to polymer mixture miscibility

Polymeric mixtures are important materials, but the control and understanding of mixing behaviour poses problems. The original Flory-Huggins theoretical approach, using a lattice model to compute the statistical thermodynamics, provides the basic understanding of the thermodynamic processes involved but is deficient in describing most real systems, and has little or no predictive capability. We...

Influence of solvent/polymer interaction on miscibility of PMMA/PCL blend: thermal analysis approach

Probing polymer/polymer interfaces.

Infrared-visible sum frequency generation spectroscopy (SFG) has been used to study the interface between poly(vinyl-N-octadecylcarbamate-co-vinyl acetate) (Comb) and deuterated or hydrogenated polystyrene (dPS or hPS) films. Strong methyl symmetric and Fermi resonance bands associated with the alkyl side chains of the Comb polymer are observed in the SFG spectra. In addition, for Comb/hPS spec...

Polymer-polymer interactions

Abstracf The successful development of multicomponent polymer systems generally requires careful control of polymer-polymer interactions since this is important for achieving useful mechanical properties, optically clear mixtures (miscibility), coupling of impact modifiers to a bnttle matrix, compatibilization of immiscible polymers, etc. Random copolymers offer a powerful tool for achieving th...