Achmad, F., Yamane, K., Quan, S. and Kokugan, T. (2009) Synthesis of Polylactic Acid by Direct Polycondensation under Vacuum without Catalysts, Solvents and Initiators. Chemical Engineering Journal, 151, 342-350.
http://dx.doi.org/10.1016/j.cej.2009.04.014

has been cited by the following article:

• TITLE: Synthesis and Hydrophilic Performance of Poly(Lactic Acid)-Poly(Ethylene Glycol) Block Copolymers

  AUTHORS: Gang Xu, Sihao Chen, Xiao Yan, Chunyu Yang, Zhichang Chen

  KEYWORDS: Lactide, Poly(Lactic Acid)-Poly(Ethylene Glycol) (PLA-PEG), Prepare, Hydrophily

  JOURNAL NAME: American Journal of Analytical Chemistry, Vol.7 No.3, March 24, 2016

  ABSTRACT: Lactide was synthesized using lactic acid and stannous octoate as raw material and catalyst, respectively. Poly(lactic acid)-poly(ethylene glycol) (PLA-PEG) was prepared by lactide and poly (ethylene glycol) (PEG) via ring-opening polymerization. The most appropriate technological conditions of synthesis of lactide were researched in the paper. The copolymers were measured by Infrared spectroscopy (IR) and 1H nuclear magnetic resonance (1H NMR). The results proved that the lactide and PLA-PEG were synthesized successfully. Hydrophilic performance of the copolymer was measured by a water contact angle tester after prepared into a flat membrane. The water contact angle changed from 81.5? to 71.6?, which proved that the hydrophily of PLA-PEG was better than PLA.