6533b7d4fe1ef96bd1261c27

RESEARCH PRODUCT

Viscometric behaviour of polymer blends based on poly (vinylidene fluoride)

Agustín CamposVicente SoriaClara M. GómezMaria Jesus ParetsP. Rodriguez

subject

chemistry.chemical_classificationTernary numeral systemMaterials sciencePolymers and PlasticsIntrinsic viscosityRelative viscosityPolymerFlory–Huggins solution theoryPhysics::Fluid DynamicsCondensed Matter::Soft Condensed Matterchemistry.chemical_compoundColloid and Surface ChemistrychemistryChemical engineeringPolymer chemistryMaterials ChemistryPolymer blendPhysics::Chemical PhysicsPhysical and Theoretical ChemistryMethyl methacrylateFluoride

description

The viscosity behaviour of dilute dimethylformamide solutions of poly(vinylidene fluoride)-poly (methyl methacrylate) and poly(vinylidene fluoride)-polystyrene has been studied at 25°C. The polymer concentration ranges are such that neither phase separation nor microgel formation occurs, although we are very close to theta conditions. The intrinsic viscosity and viscosity interaction parameter of the ternary mixtures have been calculated. The estimation of the compatibility of the above polymer pairs has been studied based on: a) specific viscosities; b) viscosity interaction parameters, according to Krigbaum and Wall formalism, and c) viscosity interaction parameters of a system formed by a dilute probe polymer in the presence of a matrix polymer and a small molecule solvent.

https://doi.org/10.1007/bf00653213