Synthesis of a Bolaform Amphiphile Bearing Biphenyl Mesogenic Group and Long Spacer and Its Surfacial Micellar Aggregation

Abstract

Abstract: A bolaform amphiphile(BP-15) bearing biphenyl group and long spacers of alkyl chains was synthesized. In-situ AFM studies indicate that the amphiphile can form two kinds of surface aggregates with different morphologies depending on solution concentration: short-range ordered cylindrical surface micelles at the lower concentration and flat domains at the higher concentration. These results agree well with the two critical micelle concentrations in bulk solution as determined by the concentration-dependent conductivity.

Key words: Bolaform amphiphile, Surface micelle, AFM

CLC Number:

O631

TrendMD:

QIU Deng-Li, SONG Bo, LIN Ao-Lei, WANG Ming-Feng, WANG Zhi-Qiang, ZHANG Xi, . Synthesis of a Bolaform Amphiphile Bearing Biphenyl Mesogenic Group and Long Spacer and Its Surfacial Micellar Aggregation[J]. Chem. J. Chinese Universities, 2004, 25(12): 2387.

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Synthesis of a Bolaform Amphiphile Bearing Biphenyl Mesogenic Group and Long Spacer and Its Surfacial Micellar Aggregation

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