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Synthesis of series of pure polyethylene glycol ethers based on n ‐tridecanol, 7 ‐tridecanol, and oxo‐process tridecyl alcohol
Author(s) -
Hartmann Ludwig,
West R. L.
Publication year - 1965
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02558260
Subject(s) - polyethylene glycol , melting point , polyethylene , crystallization , distillation , alcohol , chemistry , ether , organic chemistry , materials science , chromatography , polymer chemistry
Pure n ‐tridecyl, 7‐tridecyl and oxo ‐tridecyl polyethylene glycol monoethers, C 13 H 27 O (C 2 H 4 O) n H, were made by the Williamson reaction with n=4,6,8,10 and 12. Related crystalline diethers derived from n ‐tridecanol were made in the range of 4舑16 oxyethylene units. The compounds were extensively purified by crystallization (where applicable) or by chromatography and distillation. The final products are new compounds important for comparative studies of surface properties. Characterizing constants and physical properties including those of a large number of pure intermediates are reported. All but the lowest member of the n ‐tridecyl monoether series are crystalline, melting between 26 and 40C. The related diethers melting between 37 and 50C have a minimum melting point when they contain between 6 and 8 oxyethylene units. The oxo ‐tridecyl and 7‐tridecyl monoethers are liquids.