Host–guest chemistry of linked β-cyclodextrin trimers and adamantyl substituted poly(acrylate)s in aqueous solution

Complexation of dodecyl-substituted poly(acrylate) by linked β-cyclodextrin dimers and trimers in aqueous solution

“…Under similar conditions to those discussed above, cross‐peaks arising from both the dodecyl ddn 2–11 methylene protons and the adamantyl protons of the ADddn substituents of PAAADddn interacting with the H3,5,6 protons of the β‐CD annuli of β‐CD 3 bz and β‐CD 3 bz have been observed . This is consistent with the β‐CD annulus being positioned alternately over the adamantyl moiety and the dodecyl tether of the ADddn substituent in the complexes formed.…”

“…An interesting comparison may be made between the data collected in this study and that from the literature for the β‐CD/PAAADddn, β‐CD 3 bz/PAAADddn, and β‐CDen 3 bz/PAAADddn systems (Fig. and Table ).…”

“…The thermodynamic data in Table 1 may be placed in context with similar data from the literature for host–guest complexation of a large variety of guests by β‐CD, mono‐modified β‐CD and linked β‐CD dimers and trimers when TΔS 11 is plotted against Δ H 11 at 298.2 K as shown in Figure . It is seen that the new data obtained for complexation by β‐CD 2 ur, β‐CD 2 su, β‐CD 3 bz and β‐CDen 3 bz of the C12 substituents of PAAC12 fall within the range of the literature data and appear in the more negative Δ H 11 and TΔS 11 region of the plot.…”

“…To gain insight into the effect of hydrophobic substituent structural change and also that of the βCD complexing entities on complexation, the data obtained are compared with similar data for 3% 1‐(12‐aminododecyl)amidoadamantyl randomly substituted poly(acrylate), PAAADddn, which is essentially PAAC12 with a methyl hydrogen from each C12 substituent replaced by a 1‐amidoadamantyl group (Fig. ) …”

Triterpenoid‐Based Self‐Healing Supramolecular Polymer Hydrogels Formed by Host–Guest Interactions

“…One efficient approach is to utilize a noncovalent system to construct self‐healing hydrogels, since they can autonomously restore their initial properties . Among these approaches, host–guest systems are crucial, as they combine multiple dynamic interactions and form dynamic reversible inclusion complexes, which play an important role in constructing self‐healing hydrogels . In these works, azobenzene, ferrocene, and adamantyl groups were utilized as guest groups attached to different functional main chains, and thus resulted in self‐healing hydrogels by complexation with β‐cyclodextrin (β‐CD).…”