1. Supramacromolecules: Structure/Property Control Via Self-Assembly with Well Defined Macromolecules

The objectives of this project are to utilize psuedorotaxane formation as the self-assembly process for functionalized macromolecules in order to produce in a reversible manner non-covalent block and graft copolymers from narrow molecular weight distribution macromolecules.

2. Competitive Binding Guests for Calixcrown Ethers

In a collaborative effort with Oak Ridge National Laboratory we are seeking to find guest species which will be competitive with Cs ions for binding with calixarene-based crown ethers. These systems are now under intense study as extractants for Cs from radioactive waste solutions.

3. Non-Linear Optical (NLO) Devices Consisting of Ionically Self-Assembled Multilayer Films*

In collaboration with Profs. R. Heflin (Physics), R. M. Davis (Chemical Engineering) and K. Van Cott (Chemical Engineering) we have used electrostatic self-assembly of polyeletrolytes and ionic small molecules to produce stable films in which non-centrosymmetric ordering of dye chrhomophores is produced, leading to NLO properties.

2. Photovoltaic Devices Consisting of Ionically Self-Assembled Multilayer Films*

In collaboration with Profs. H. Dorn (Chemistry) R. Heflin (Physics), R. M. Davis (Chemical Engineering) and K. Van Cott (Chemical Engineering) and Luna Innovations, Inc. (Blacksburg, VA) we have used electrostatic self-assembly of polyeletrolytes and ionic small molecules to produce stable films consisting of conducting polymers and acceptors; these exhibit photovoltaic response. That is, the absorption of light results in production of an electrical potential.

3. Functionalization and Self-Assembly of Fullerenes*

In collaboration with Prof. H. Dorn (Chemistry) and Luna Innovations, Inc. (Blacksburg, VA) we are exploring the chemistry of fullerenes to enable their functionalization and self-assembly for deployment in solution applications and solid state devices.
 
 

* These activities are part of the research program of the Center for Self-Assmbled Nanostructures and Devices at Virginia Tech.