6533b7d7fe1ef96bd126904c

RESEARCH PRODUCT

Dispersion Polymerization of Vinylidene Fluoride in Supercritical Carbon Dioxide

Ivano CostaPhilipp A. MuellerPhilipp A. MuellerGiuseppe StortiMassimo MorbidelliOnofrio ScialdoneGiuseppe FilardoGiuseppe FilardoAlessandro Galia

subject

Dispersion polymerizationSupercritical carbon dioxidePolymers and PlasticsChemistryPolymerization vinylideneOrganic ChemistryRadical polymerizationSettore ING-IND/27 - Chimica Industriale E TecnologicaInorganic ChemistryEnd-groupChain-growth polymerizationPolymerizationChemical engineeringPolymer chemistryMaterials ChemistryMolar mass distributionAddition polymer

description

The dispersion polymerization of vinylidene fluoride in supercritical carbon dioxide is investigated using two ammonium carboxylate perfluoropolyether stabilizers of different molecular weights. Under suitable operating conditions a polymer made of well-dispersed spherical particles has been obtained up to relatively high conversion. The experimental data of polymerization rate and molecular weight distribution are in good agreement with the predictions of a model previously developed. Such an agreement supports the conclusion that the polymerization kinetics is dominated by the interphase transport of the active radicals between the continuous phase and the polymer particles.

yearjournalcountryeditionlanguage
2006-08-19Macromolecules
https://doi.org/10.1021/ma060981l