期刊
JOURNAL OF SEPARATION SCIENCE
卷 32, 期 9, 页码 1390-1400出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.200900014
关键词
Block copolymer; Caprolactone; Critical conditions; Microwave-assisted polymerization; Two-dimensional chromatography
Block copolymers of ethylene oxide and epsilon-caprolactone were synthesized by microwave-assisted polymerization of epsilon-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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