6533b856fe1ef96bd12b277f
RESEARCH PRODUCT
Nanosized shape-changing colloids from liquid crystalline elastomers.
Sönke HaselohFay SmallwoodRudolf ZentelChristian Ohmsubject
Phase transitionMaterials sciencePolymers and PlasticsPolyestersdigestive oral and skin physiologyOrganic ChemistryNanoparticleElastomerLiquid CrystalsMiniemulsionPolyesterChemical engineeringElastomersTransmission electron microscopyPhase (matter)Polymer chemistryMaterials ChemistryNanoparticlessense organsParticle sizeColloidsParticle Sizedescription
A method to prepare shape-changing nanospheres from liquid crystalline elastomers is reported. The nanosized colloids are prepared by a miniemulsion process. During this process, colloids are prepared from a liquid crystalline (LC) main-chain polyester and subsequently crosslinked into a nanometer-sized LC elastomer. The ability of these LC elastomers to change their shape at the phase transition temperature from the smectic A to the isotropic phase was detected by temperature-dependent transmission electron microscopy. The phase transition-induced shape change leads to strongly shape anisotropic nanosized elastomer particles.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-06-01 | Macromolecular rapid communications |