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RESEARCH PRODUCT
Inhomogeneity of gel and microsyneresis in porous styrene‐divinylbenzene copolymers
Henryk GalinaPiotr WieczorekMaria WojczynskaBożena N. Kolarzsubject
Materials scienceGeneral EngineeringDivinylbenzeneDiluentSuspension (chemistry)StyreneSolventchemistry.chemical_compoundchemistryChemical engineeringPolymer chemistryCopolymermedicineGeneral Materials Sciencesense organsSwellingmedicine.symptomskin and connective tissue diseasesPorositydescription
The porosity of styrene-divinylbenzene copolymers prepared by suspension copolymerisation of the monomers carried out in the presence of inert diluent changes due to solvent pretreatment is investigated. The changes seem to reflect the inhomogeneity of copolymer gel. Various portions of it are transferred from the rubber-like into the glassy state at different stages of either swelling solvent exchange or the drying process. A microsyneresis, i.e. a local collapse of loosely crosslinked gel portions not followed by a shrinkage of the whole system, leads to the porosity changes.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1985-06-01 | Polymer International |