Zg. Zhang et al., Synthesis of poly(solketal methacrylate)-block-poly(2-(dimethylamino)ethylmethacrylate) and preparation of nanospheres with cross-linked shells, MACROMOLEC, 33(21), 2000, pp. 7877-7883
Living free radical polymerization was used to prepare poly(solketal methac
rylate)-block-poly(2-(dimethylamino)ethyl methacrylate) or PSMA-b-PDMAEMA.
A diblock with 105 SMA units and 122 DMAEMA units formed spherical micelles
with PDMAEMA coronas and PSMA cores in water with 5 vol % THF. Nanospheres
with cross-linked shells were obtained by cross-linking the PDMAEMA corona
s with 1,2-bis(2'-iodoethoxyl)ethane (BIEE). The cores of the nanospheres w
ere made hydrophilic by hydrolyzing the acetonide groups of PSMA.