Shell crosslinked polymer assemblies: Nanoscale constructs inspired from biological systems

Synthesis of Thermoresponsive Shell Cross-Linked Micelles via Living Cationic Polymerization and UV Irradiation

“…In fact, upon adsorption onto a mica, the micelle assembly was destroyed even after drying carefully at 40 °C, similar to poly(isoprene-b-acrylic acid). 2 In contrast, the SCL micelles become robust and imaging by AFM confirms the stabilization as shown in Figure 9. It can be seen that many particles were formed with an average height of 2.8 nm determined by the section analysis, significantly less than the micelles diameter.…”

“…In the case of non-cross-linked polymer micelles of PEOVE- b -PHOVE, it is hard to obtain clear AFM images due to quite a low glass transition temperature. In fact, upon adsorption onto a mica, the micelle assembly was destroyed even after drying carefully at 40 °C, similar to poly(isoprene- b -acrylic acid) . In contrast, the SCL micelles become robust and imaging by AFM confirms the stabilization as shown in Figure .…”

“…The average size is 41 nm, smaller than the value derived from DLS. All of these indicate some flattening of the loose SCL micelles on the AFM substrate and then shrinking under the dry condition.…”

Autophobicity-Driven Surface Segregation and Patterning of Core−Shell Microgel Nanoparticles

“…[5][6][7] If the B shell is chemically crosslinked, the A core of such nanoparticles can be selectively removed and subsequently used as a hollow compartment for encapsulation. [8][9][10][11] In this and our previous investigation, 5 though, the core is cross-linked so that the B arms can freely interact with species in the local environment. As physical models of permanent AB diblock copolymer micelles 12,13 and alternatives to organically modified metal or metal oxide nanoparticles, [14][15][16][17] CSMG nanoparticles are of growing fundamental and technological interest because of their tailorable chemistry and unique physicochemical properties.…”

pH-Triggered reversible morphological inversion of orthogonally-addressable poly(3-acrylamidophenylboronic acid)-block-poly(acrylamidoethylamine) micelles and their shell crosslinked nanoparticles

“…The charged forms have much higher combination constant than the uncharged forms to make a stable complex with glucose through reversible dynamic covalent bonding. [22] To two samples of micelle solutions at pH 2, 5 equivalents and 15 equivalents of D-glucose compared to phenylboronic acid functionalities were added, respectively. Zeta potential values were measured and plotted as a function of pH (Figure 8).…”