6533b828fe1ef96bd1288f78

RESEARCH PRODUCT

Ferroelectric block copolymers

Guoping MaoMartin BrehmerChristopher K. OberRudolf Zentel

subject

chemistry.chemical_classificationMaterials sciencePolymers and PlasticsMesogenOrganic ChemistryPolymerCondensed Matter PhysicsFerroelectricitychemistry.chemical_compoundchemistryChemical engineeringLiquid crystalPolymer chemistryMaterials ChemistrySide chainCopolymerLamellar structurePolystyrene

description

A block copolymer consisting of polystyrene and a side chain ferroelectric liquid crystalline polymer was synthesized using polymer analogous chemistry on a monodisperse poly(styrene-b-isoprene). Composition was adjusted to give lamellar microstructure after addition of the mesogenic side groups. If placed in an LC cell without orientation of domains, no ferroelectric response was observed. After shearing the thin film, presumably due to alignment of lamellae, a bistable ferroelectric switching could be detected.

https://doi.org/10.1002/masy.19971170121