pH and salt responsive poly(N,N-dimethylaminoethyl methacrylate) cylindrical brushes and their quaternized derivatives

Direct Synthesis of Poly(potassium 3‐sulfopropyl methacrylate) Cylindrical Polymer Brushes via ATRP Using a Supramolecular Complex With Crown Ether

“…The results show that there is a great difference between the DP n of the cleaved side chain and that calculated from monomer conversion, and the initiating efficiency was about 0.35, which is much lower than that for other monomers reported by us. [4,5] Nevertheless, this is in agreement with the low initiating efficiencies of the methacrylic monomers in the grafting-from process reported by Matyjaszewski and coworkers. [16,17] This also explains the rather low ratio R g /R h ¼ 1.3, typically for semiflexible wormlike structures.…”

“…The average length of the PSPMAK brushes is around 120 nm, which is considerably lower than that of other brushes grafted from the same backbone. [4,6] This is attributed to the lower grafting density of the side chains. The real Direct Synthesis of Poly(potassium 3-sulfopropyl methacrylate) .…”

“…[1][2][3][4] But the difficulties of preparing such kind of polymers have hindered the study on their properties and further applications. So far, very few examples of CPBs have been reported.…”

“…So far, very few examples of CPBs have been reported. [1,[4][5][6][7][8][9] Both grafting-from [4][5][6] and graftingthrough [1,9] strategies have been used for the preparation of CPBs. In order to get CPBs with well-defined structures, living/controlled polymerizations were adopted to prepare either the backbone or the side chains.…”

Scanning Force Microscopy as Applied to Conformational Studies in Macromolecular Research

“…[46][47][48][49] Typically, SFM micrographs still provide slightly better resolution and higher contrast as compared to the cryo TEM images. Nevertheless, direct or indirect contrasting may improve the situation.…”