Biodegradable thermoreversible gelling PLGA-g-PEG copolymersElectronic supplementary information (ESI) available: 1H NMR spectrum of PLGA-g-PEG in CDCl3. 13C NMR (75 MHz) spectra of 25 wt% PLGA-g-PEG copolymer in D2O as a function of T. See http://www.rsc.org/suppdata/cc/b1/b102819g/

Abstract

The thermogelling aqueous solution of poly(DL-lactic acid-co-glycolic acid) grafted with poly(ethylene glycol)s is developed, and the elegant instrumental methods to determine sol–gel transition temperature and the method to control gel duration are reported.