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The thermal relaxation of a monolayer of PMMA deposited on a thick film was discussed by the direct observation of single chains using scanning near-field optical microscopy (SNOM). The polymer chain of the monolayer penetrated into the bulk substrate with a diffusion rate much faster than that of the translational diffusion of the entire chain. Conversely, the radius of gyration in the lateral direction was maintained throughout the relaxation process.
Multihybrid particles having a gold core, silica as an inital shell and polymethylmethacrylate (pMMA) as a second shell (Au@SiO2@pMMA) were synthesized and assembled in two to three dimensions using the Langmuir–Blodgett technique.
Interaction between a chiral polymer obtained by cyclopolymerization of a bisacrylamide [poly(1)] and aromatic aldehydes was investigated by CD, NMR and IR measurements. The observed induced CD demonstrated that the chiral frameworks of poly(1) forced aldehydes to remain in a chiral environment. NMR and IR measurements on the mixtures of poly(1) and aromatic aldehydes suggested that carbonyl groups interacted with the polymer.
When methanol, a non-solvent, was added to dilute THF solutions of an optically active polyfluorene derivative, the liquid–liquid phase separation took place, and circular dichroism (CD) was induced at a low temperature. The CD induction upon cooling was a rather slow process, according to the first-order reaction kinetics. The intermolecular chiral interaction in the concentrated phase may be responsible for the CD induction or nonracemization of this helical polyfluorene derivative in phase-separating solutions.