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The biodegradable cholesteryl-(l-lactic acid)n (CPLA) was synthesized via ring opening polymerization of l-lactide in the presence of cholesterol as an initiator and the catalytic amount of Sn(Oct)2. The resulting monohydroxyl-terminated CPLA was subsequently converted to a bromine-ended macroinitiator (CPLA-Br) by esterification with 2-bromoisobutyryl bromide. Amphiphilic block-brush copolymers...
The biodegradable polymer cholesteryl-(L-lactic acid)50, CLA50, was synthesized via ring-opening polymerization of L-lactide in the presence of cholesterol as an initiator and a catalytic amount of Sn(Oct)2. The resulting monohydroxyl-terminated CLA50 was subsequently converted to a bromine-ended macroinitiator (CLA50–Br) by esterification with 2-bromisobutyryl bromide. The amphiphilic diblock copolymer...
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