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Official websites use. Share sensitive information only on official, secure websites. The high stability of the kinetic state, which is dominated by the hydrophobic effect, is reflected in the slow transformation to the thermodynamic product several weeks at room temperature.
However, this lag time can be suppressed by the addition of seeds from the thermodynamic species, enabling us to obtain supramolecular polymers of tuneable length in water for multiple cycles. Keywords: amphiphilic systems, aqueous self-assembly, BODIPY dyes, controlled supramolecular polymerization, hydrogen bonding. These findings open up new directions in the field of controlled supramolecular polymerization.
The synthesis and full characterization of 1 are described in the experimental section of the Supporting Information S. Unfortunately, the proton of the hydroxy group was not visible even at high temperatures, most likely due to the fast exchange and strong interactions of this group. Addition of a monomer solution of 1 THF to an aqueous solution 2. For the aqueous aggregate solution of B , the disassembly is also initiated by addition of the monomer solution of 1 in a good solvent THF.
This hypothesis is also supported by the cooperative mechanism and FTIR studies. The decreased lag time for systems with higher amounts of THF imply that hydrophobic interactions are important for the stabilization of A. However, if THF is removed from the solution see S. This dramatically decreased transformation rate at low or negligible THF contents can be exploited for trapping kinetic species A.
Given the large difference between the diameter and height values, the nanostructures are likely discoidal in nature. Height analysis reveals that the height of the 1D fibers is nearly twice 3. In addition, discoidal assemblies of unimolecular height were visualized by AFM studies.