Hyperbranched polymers 10 years after

Rapid Hyperbranched Polythioether Synthesis Through Thiol‐Michael Addition Reaction

“…More importantly, no depolymerization was observed during the polymerization, a gradual increase in molecular weight reflecting the evolution of HB polythioether (2) was clearly observed. 1 H NMR spectrum of HB polythioether (2) confirms the structure of HB polythioether (2) displaying two signals at 4.27 Table 3, for 10 mol % TBD in 15 min) in CDCl 3 (500 MHz). and 2.67 ppm, which are assigned to the CHS and the neighbor CH 2 protons, respectively (Fig.…”

“…It should be noted that GPC traces of HB polythioethers shift to the lower molecular weight region displaying a distinct reduction in molecular weights over time. As mentioned earlier, it points out the depolymerization process of the HB polythioether (1). Here, it should be taken into account not only the gradual decrease in molecular weights but also the decrease in dispersity, which might be attributed to a relative rearrangement in the highly branched structure after depolymerization.…”

Functional Surfaces Constructed with Hyperbranched Copolymers as Optical Imaging and Electrochemical Cell Sensing Platforms

“…Increase in the concentration of inimer during the polymerization (DMAEMA) from 5.0% to 7.5% did not result in a significant change in surface hydrophilicity. In this connection, it should be pointed out that the CA values obtained for P(DMAEMA) surfaces are relatively higher than that of the reported ones which may be related to the surface roughness . Notably, in the reported work, the AFM histograms were smoother than our spin‐coated surfaces.…”

“…In this connection, it should be pointed out that the CA values obtained for P(DMAEMA) surfaces are relatively higher than that of the reported ones which may be related to the surface roughness. [13] Notably, in the reported work, the AFM histograms were smoother than our spin-coated surfaces. These two vivid differences might arise from the applied methods for the deposition of polymers onto surfaces.…”

Star‐shaped poly(L‐lactide)s with variable numbers of hydroxyl groups at polyester arms chain‐ends and directly attached to the star‐shaped core—Controlled synthesis and characterization

“…This result can be explained by strong complexation of -OH groups by DMSO, eliminating the fast exchange of protons. Eventually, presence of two population of hydroxyl protons in the ratio of 2:3 confirms the assumed structure of (BnO)DPE(OH) 5 .…”