Characterization of poly(ethylene glycol)‐b‐ poly(ε‐caprolactone) by two‐dimensional liquid chromatography |
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| Authors: | Hasnat Ahmed Bernd Trathnigg |
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| Institution: | Institute of Chemistry, Karl‐Franzens University, Graz, Austria. Fax: +43‐316‐3809840 |
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| Abstract: | Block copolymers of ethylene oxide and ε‐caprolactone were synthesized by microwave‐assisted polymerization of ε‐caprolactone with polyethylene glycol monomethyl ethers as initiator. The samples thus obtained were characterized by two‐dimensional liquid chromatography with liquid chromatography at critical conditions as the first and liquid exclusion adsorption chromatography as the second dimension. A full baseline separation of all oligomers could be achieved in both dimensions. |
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| Keywords: | Block copolymer Caprolactone Critical conditions Microwave‐assisted polymerization Two‐dimensional chromatography |
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