Synthesis and characterization of novel comb-type amphiphilic graft copolymers containing polypropylene and polyethylene glycol
Amphiphilic comb-type graft copolymers containing polypropylene (PP) and polyethylene glycol (PEG) have been prepared. Polypropylene-g-polyethylene glycol comb-type thermoplastic amphiphilic copolymers were synthesized by the reaction between chlorinated polypropylene and polyethylene glycol in the presence of a base via a “grafting to” technique. A series of graft copolymers containing PEGs with molecular weights of 600 and 2,000 Da in the range of 4–34 mol% PEG were obtained. The amphiphilic graft copolymers with PEG segments in range between 20 and 30 mol% PEG displayed good film properties with elongation at break 275–440%. The hydrophilicity of the amphiphilic copolymers increases with the increasing PEG content in the copolymer while the mechanical properties decrease. Therefore, PP-g-PEG2000 with PEG contents in the range of 20–30 mol% PEG should be useful for medical and industrial applications where good film properties are needed.
Balci, Murat; Alli, Abdulkadir; Hazer, Baki; Guven, Olgun; Cavicchi, Kevin; and Cakmak, Mukerrem, "Synthesis and characterization of novel comb-type amphiphilic graft copolymers containing polypropylene and polyethylene glycol" (2009). Polymer Engineering Faculty Research. 1394.