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In this work, we systematically investigated the aggregation and confined crystallization behavior of polymethylene-b-poly acrylic acid diblock copolymers (PM-b-PAA, M93A94) under the influence of polyethyene polyamine (PPA). With the increasing molar ratio of PPA, the morphologies of PM-b-PAA micelles experienced sphere-to-band-to-sheet transformations with regular changes of sizes on cooling from...
Bildet eine Kette: Ein Copillararen‐Monomer bildet in Lösung ein lineares supramolekulares Polymer (siehe Bild). Einkristall‐Röntgenstrukturanalysen und NMR‐Spektren belegen die enthalpisch angetriebene Aggregation über vierfache CH⋅⋅⋅π‐Wechselwirkungen zwischen dem Octylrest (blau) und dem mit aromatischen Gruppen ausgekleideten Hohlraum (rot).
Copillararene convoy: A linear supramolecular polymer can be efficiently constructed in solution with a copillararene monomer (see picture). Single‐crystal X‐ray analysis and NMR spectroscopy revealed that aggregation was enthalpically driven by quadruple CH⋅⋅⋅π interactions between the octyl tail (blue) and the aromatic cavity (red).
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