Green polymer chemistry: One-pot, metal-free synthesis of macromonomer via direct polycondensation of lactic acid and its radical polymerization to graft and comb polymers

A new facile method of poly(lactic acid) (PLA) macromonomer synthesis has been developed by using one-pot two-stage reaction synthesis. The first stage reaction is a direct polycondensation of lactic acid without catalyst to PLA, and the second stage is a ring-opening addition of PLA to glycidyl methacrylate to afford a PLA macromonomer having methacryloyl polymerizable group.264