Permanent Bubble Arrays from a Cross-Linked Poly(para-phenyleneethynylene): Picoliter Holes without Microfabrication

Belma Erdogan; Lulu Song; James N. Wilson; Jung O. Park; Mohan Srinivasarao; Uwe H.F. Bunz

doi:10.1021/ja0320020

Permanent Bubble Arrays from a Cross-Linked Poly(para-phenyleneethynylene): Picoliter Holes without Microfabrication

Belma Erdogan, Lulu Song, James N. Wilson, Jung O. Park, Mohan Srinivasarao, Uwe H.F. Bunz

Research output: Contribution to journal › Article

125 Scopus citations

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)
Pages (from-to)	3678-3679
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	126
Issue number	12
DOIs	https://doi.org/10.1021/ja0320020
State	Published - Mar 31 2004
Externally published	Yes

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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10.1021/ja0320020

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Erdogan, B., Song, L., Wilson, J. N., Park, J. O., Srinivasarao, M., & Bunz, U. H. F. (2004). Permanent Bubble Arrays from a Cross-Linked Poly(para-phenyleneethynylene): Picoliter Holes without Microfabrication. Journal of the American Chemical Society, 126(12), 3678-3679. https://doi.org/10.1021/ja0320020

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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.",

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