Abstract
Samples of three series of homogeneous oxyethylene oligomers: (i) H(OCH 2CH 2) mOH, m in the range 1 to 45; (ii) CH 3(OCH 2CH 2) m,OCH 3, m in the range 2 to 45; (iii) H(CH 2) n(OCH 2CH 2) 4O(CH 2) nH, n = 2, 3, 7, 9; were eluted through a PL-gel low-porosity gel permeation chromatographic column with several solvents; dichloromethane, tetrahydrofuran, 1,1,1-trichloroethane, 1,2,4-trichlorobenzene, and N,N′-dimethylacetamide. The elution volumes of the oligomers were determined by a combination of size-exclusion and partition—adsorption effects.
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