6533b7d4fe1ef96bd1261d48
RESEARCH PRODUCT
Nanoscale Blends between Immiscible Polymers via Simultaneous Non-Interfering Polymerisation
Philippe ZinckClaire-hélène BrachaisDenise Barbier-baudryEric Finotsubject
chemistry.chemical_classificationMaterials sciencePolymers and PlasticsOrganic ChemistryDispersityPolymerCondensed Matter PhysicsStyrenechemistry.chemical_compoundchemistryPhase (matter)PolycaprolactonePolymer chemistryMaterials ChemistryPolymer blendPolystyrenePhysical and Theoretical ChemistryCaprolactonedescription
An important topic in polymer science seeks to improve the performances of polymer blends using nanoscale phase segregation. Here, blends between polystyrene and polycaprolactone are realised by a chemical route. The non-interfering character of the radical polymerisation of styrene and the lanthanide halide initiated ring-opening polymerisation of caprolactone is assessed. The molecular weights range from 2 000 to 3 500 for polycaprolactone and up to 140 000 for polystyrene, with reasonable polydispersity indexes. From calorimetry measurements, it is shown that polystyrene and low molecular weight polycaprolactone are immiscible. The morphology of the blends between the two immiscible polymers studied by atomic force microscopy is consistent with nanometer-scale phase segregation.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-03-04 | Macromolecular Chemistry and Physics |