Dramatic Morphology Control in the Fabrication of Porous Polymer Films
Luke A Connal, Robert Vestberg, Craig J Hawker, Greg G Qiao
ADVANCED FUNCTIONAL MATERIALS | WILEY-V C H VERLAG GMBH | Published : 2008
Highly ordered, porous honeycomb films are prepared by the breath-figure (BF) technique using dendron-functionalized star polymers as precursors. By changing the nature of the dendritic end groups, dramatically different porous morphologies can be produced. Three series of star polymers are prepared with both the size of the 2,2-bis(methoxy)propionic acid (bis-MPA)-based dendron end group and the dendron functionality being varied. Star polymers end-functionalized with acetonide-protected dendrons (generations 1 to 4) are initially prepared and the acetonide groups subsequently deprotected to yield hydroxylfunctionalized star polymers. Modification of these hydroxyl groups with pentadecafluo..View full abstract
Awarded by NSF MRSEC
Awarded by National Institutes of Health as a Program of Excellence in Nanotechnology
Awarded by Australian Research Council's Discovery Grant
Financial support from the NSF MRSEC Program DMR-0520415 (MRL-UCSB), National Institutes of Health as a Program of Excellence in Nanotechnology (HL080729), and an Australian Research Council's Discovery Grant (DP0345290) is gratefully acknowledged. The authors would also like to thank the Royal Australian Chemical Institute (Polymer Division) for travel support through the O'Donnell prize (LAC).