Fig. 1

Synthesis of monomers and polymers. a General scheme for the modular synthesis of Boc-protected guanidine-functionalized cyclic carbonate monomers (MTC-OX-BocGua) bearing various hydrophobic spacer groups; b general scheme for synthesis of guanidinium-functionalized polycarbonates (P(MTC-OX-Gua)) by metal-free ROP followed by acid-mediated removal of Boc groups; c GPC chromatograms of representative polycarbonates (prior to deprotection)