Chinese Journal of Magnetic Resonance >
NMR Analyses of Two Polyether Modified Organic Silicone Surfactants
Received date: 2015-10-19
Revised date: 2016-07-11
Online published: 2016-09-05
Two unknown polyether modified organic silicone surfactants were studied by NMR techniques (i.e., 1H NMR, DEPT135, 13C qNMR, 1H-1H COSY, 1H-13C HSQC, 1H-13C HMBC, 29Si qNMR and 1H-29Si HMBC). The NMR signals were assigned. The results indicated that the two silicone surfactants could be distinguished from each other by 1H-29Si HMBC. The main component of sample A was polyethylene oxide modified polydimethylsiloxane surfactant with a linear ABA structure, and sample B had a comb BAB structure. The average molecular weight of the two compounds was 1 967 and 7 191, respectively.
ZHANG Bin-feng , ZHU Xue-rong . NMR Analyses of Two Polyether Modified Organic Silicone Surfactants[J]. Chinese Journal of Magnetic Resonance, 2016 , 33(3) : 432 -441 . DOI: 10.11938/cjmr20160308
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