Y. Ohya et al., PREPARATION OF POLY(LACTIC ACID)-GRAFTED AMYLOSE THROUGH THE TRIMETHYLSILYL PROTECTION METHOD AND ITS BIODEGRADATION, Macromolecular chemistry and physics, 199(9), 1998, pp. 2017-2022
Biodegradable poly(lactic acid)-grafted amylose was synthesized using
a trimethylsilyl (TMS) protection method. Tehrahydrofuran soluble, mos
tly trimethylsilyl protected amylose was prepared and reacted with pot
assium tert-butoxide to give the corresponding alkoxide. Poly(lactic a
cid)-grafted amyloses were obtained by ring-opening anionic polymeriza
tion of lactide using the polymeric alkoxides as initiators and subseq
uent removal of the TMS groups. The obtained graft copolymers show bio
degradability and a microphase-separated morphology.