ended up prepared by ring-opening copolymerization of e-CL initiated by hydroxyl of PEG
L-glutamic acid di-tertbutyl ester hydrochloride and H-Lys(Z)Ot-Bu hydrochloride had been received from En lai Organic Technological innovation Co., LTD (Chengdu, People’s Republic of China). mPEG-OH (Mw: 2 kDa) and mPEG-OH…