Azide terminated polystyrene was synthesized via anionic polymerization, while C60 moieties were grafted along the coil block with a [4+2] Diels-Alder cycloaddition reaction.
In our previous studies [ 44– 46], phosphoryl choline moieties were grafted onto MWCNTs and then cytotoxicity of the modified CNTs was evaluated in cell and mice.
In the present work, PNIPAAM moieties were grafted onto the hydroxyl groups of the backbone of the uncharged modified hydroxyethylcellulose (MHEC- g-PNIPAAM) sample, or on the anionic hydroxyethylcellulose derivative (sulfo-2-hydroxypropyl substitution) analog for which the abbreviation MHEC- g-PNIPAAM is used.
As for SWCNT-PCn, the phosphoryl choline moiety was grafted onto SWCNTs as a polymeric chain on the grafting point of SWCNTs following the atom transfer radical polymerization (ATRP) of MPC as described by Narain et al. [ 48] and Zhu et al. [ 49] and briefly presented in Scheme 1(b).
The pro-moiety is grafted via an ester function to CsA and the solubilizing group is a phosphate ion.
The new molecules were designed according to the double prodrug concept: a solubilizing moiety was grafted onto CsA via an ester function, which could be hydrolysed via a two-step process (enzymatic and chemical).
In the final products, the phosphoryl choline moiety was grafted onto SWCNTs as a small molecule structure.
In this present investigation, hydrophilic –SO3H moiety has been grafted to the PS block of SEBS as characterized by FTIR and morphological investigations.
The functionalization of CDC electrodes was only possible when a critical pore size is reached: only 2 nm pore diameter CDC can be grafted with AQ moieties, smaller pore size leading to a poorly functionalized electrode.
It is considered that the copolymer was grafted onto VGCF surface by ligand-exchange reaction between ferrocene moieties of the copolymer and polycondensed aromatic rings of VGCF.
