1. Photopolymerization/ Photografting Advantages  Rapid  Energy Efficient  Solvent Free  Control of Initiation Spatial/Temporal  Initiation Independent of Temperature  High Grafting Efficiency for Surface Modification Disadvantages  Thin Films  Oxygen Inhibition

2. Photografting Process Pan, B.; Viswanthan, K.; Hoyle, C. E.; Moore, R. B. J. Polym Sci. Polym. Chem. 2004, 42, 1953.

3. Photografting/polymerization Opportunities Large Range of Vinylic Monomers Can Be Incorporated – Acrylate, Methacrylate, Vinyl Esters, Acrylonitrile, Styrene Increase Polarity/Adhesion for Polymeric Olefins (PP, HDPE, etc.) Add Functionality to Surface Why Photo? (expense, ease of use, safety) Nanotechnology Thiol-ene ‘Click’ Chemistry S S hvhv + S S S S S S S S S S S S S

4. Compatibilization of Immiscible Blends using LLC templates PEGDA HDDA ~ 2 nm Hexagonal LLC Lamellar LLC Brij 56 Photopolymerization & Surfactant Removal J. D. Clapper and C. A. Guymon, Adv. Mat. 2006, 18, 1575.