Table 2. Composition of Three Different ABC Triblock Copolymers Synthesized Using the Heterofunctional PEG Macroinitiatora.
| polymer
block composition |
|||
|---|---|---|---|
| name | A | B | C |
| NPD | NIPAM (thermosensitive) | PEG (hydrophilic) | DMAEMA (pH-sensitive) |
| NPH | NIPAM (thermosensitive) | PEG (hydrophilic) | HEA (hydrophilic) |
| HPD | HEA (hydrophilic) | PEG (hydrophilic) | DMAEMA (pH-sensitive) |
a
N-Isopropylacrylamide (NIPAM) was used to introduce a thermosensitive block in the polymer, 2-(dimethylamino)ethyl methacrylate (DMAEMA) was used to introduce pH-sensitive properties, and 2-hydroxyethyl acrylate (HEA) was used as noncharged hydrophilic monomer.