Many approaches have been employed to toughen PLA; they included incorporating
poly(ethylene-glycidyl methacrylate) (EGMA) by reactive blending [1], blending with polycarpolactone [2], blending maleic anhydride-grafted PLA with thermoplastic starch [3], adding
polyethylene glycol [4] and utilizing poly(butylenes adipates-coterepthalate) [5].