TY - JOUR
T1 - Mesoscopic patterning in evaporated polymer solutions
T2 - Poly(ethylene glycol) and room-temperature-vulcanized polyorganosilanes/-siloxanes promote formation of honeycomb structures
AU - Bormashenko, Edward
AU - Malkin, Alexander
AU - Musin, Albina
AU - Bormashenko, Yelena
AU - Whyman, Gene
AU - Litvak, Natalya
AU - Barkay, Zahava
AU - Machavariani, Vladimir
PY - 2008/3/25
Y1 - 2008/3/25
N2 - Patterning in evaporated polymer solutions based on amorphous polymers and chlorinated solvents has been investigated. Bilayered films patterned on two scales, i.e., 50 and 5 m, are obtained. The addition of polyorganosilane/- siloxane to solutions destroys the large-scale pattern. Polyethylene glycol) promotes the formation of more dense close-packed structures on the mesoscopic scale (≈5 m). Short-range and mesoscopic (liquid-like) ordering of the honeycomb structures on the characteristic scale of 5 m is revealed with the statistical analysis of SEM images. Physical mechanisms responsible for patterning are discussed.
AB - Patterning in evaporated polymer solutions based on amorphous polymers and chlorinated solvents has been investigated. Bilayered films patterned on two scales, i.e., 50 and 5 m, are obtained. The addition of polyorganosilane/- siloxane to solutions destroys the large-scale pattern. Polyethylene glycol) promotes the formation of more dense close-packed structures on the mesoscopic scale (≈5 m). Short-range and mesoscopic (liquid-like) ordering of the honeycomb structures on the characteristic scale of 5 m is revealed with the statistical analysis of SEM images. Physical mechanisms responsible for patterning are discussed.
KW - Honeycomb
KW - Marangoni instability
KW - Pattern
KW - Poly(ethylene glycol)
KW - Polymer solutions
KW - Polysilanes
KW - Polysiloxanes
UR - http://www.scopus.com/inward/record.url?scp=49149109773&partnerID=8YFLogxK
U2 - 10.1002/macp.200700552
DO - 10.1002/macp.200700552
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AN - SCOPUS:49149109773
SN - 1022-1352
VL - 209
SP - 567
EP - 576
JO - Macromolecular Chemistry and Physics
JF - Macromolecular Chemistry and Physics
IS - 6
ER -