Abstract
An azide-substituted poly(para-phenyleneethynylene) (PPE) 4 was prepared by the Heck?Cassar?Sonogashira?Hagihara method. Thin films of 4 form self-assembled bubble arrays from carbon disulfide solution utilizing the breath figure method. The as-formed porous films of 4 are soluble in common solvents, and the air bubbles are interconnected. Upon heating to 300 °C, 4 cross-links and the thin film turn into insoluble matrix with isolated bubbles. The cross-linking process has transformed the bubble arrays of 4 into insoluble picoliter beakers or picoliter vials, whose diameters are approximately 3.0 and 1.5 μm at the top and bottom, respectively.
Original language | English (US) |
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Pages (from-to) | 3678-3679 |
Number of pages | 2 |
Journal | Journal of the American Chemical Society |
Volume | 126 |
Issue number | 12 |
DOIs | |
State | Published - Mar 31 2004 |
Externally published | Yes |
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)
- Biochemistry
- Colloid and Surface Chemistry