6533b82bfe1ef96bd128e24a
RESEARCH PRODUCT
Grafted Rods: A Tilting Phase Transition
Diethelm JohannsmannA. HalperinFriederike Schmidsubject
Phase transitionQuantitative Biology::BiomoleculesMaterials sciencePhysics and Astronomy (miscellaneous)Condensed matter physicsdigestive oral and skin physiologyCondensed Matter (cond-mat)General EngineeringFOS: Physical sciencesBendingCondensed MatterGraftingAtomic and Molecular Physics and OpticsRodCondensed Matter::Soft Condensed MatterPerpendicularMoleculesense organsElasticity (economics)Tilt (camera)description
A tilting phase transition is predicted for systems comprising rod like molecules which are irreversibly grafted to a flat surface, so that the non interacting rods are perpendicularly oriented. The transition is controlled by the grafting density $\rho$. It occurs as $\rho$ increases as a result of the interplay between two energies. Tilt is favoured by the van-der-Waals attraction between the rods. It is opposed by the bending elasticity of the grafting functionality. The role of temperature is discussed, and the tilting mechanism is compared to other tilting transitions reported in the literature.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-05-31 |