Full separation of oligomers in block copolymers of ethylene oxide and propylene oxide.
In this study di- and triblock copolymers of ethylene oxide (EO) and propylene oxide (PO) are analyzed by using CAP for one block and adsorption for the other block. This gives a complete picture of EO- and PO-based block copolymer with respect to the oligomers of both blocks. A full resolution of the individual oligomers can be achieved for both blocks up to an average molecular weight of 1000-1500 of each block.
Institute of Chemistry, Karl-Franzens-University, Graz, Austria.
Muhammad Imran
MI
Malik
Bernd
B
Trathnigg
D000327:Adsorption; D002853:Chromatography, Liquid; D008970:Molecular Weight; D011092:Polyethylene Glycols / Q000032:analysis* / Q000737:chemistry; D011095:Polyethylenes / Q000032:analysis* / Q000737:chemistry; D011126:Polypropylenes / Q000032:analysis* / Q000737:chemistry; D011409:Propylene Glycols / Q000032:analysis* / Q000737:chemistry
C116176:PEO-PPO-PEO; D011095:Polyethylenes; D011126:Polypropylenes; D011409:Propylene Glycols; D011092:Polyethylene Glycols; C078661:UCON 50-HB-5100