An NMR and FT-IR Study on Polyether Modified Silicon Surfactant

Abstract

Abstract:

Unknown silicon surfactant (NPS-A) was characterized by FT-IR and NMR spectra (including ¹H NMR, ¹³C NMR, DEPT135, COSY, HSQC and HMBC). The results indicated that the sample is a polyether modified silicon surfactant. It is a mixture of three ingredients dissolved in DMSO: (1) M-D₂₀-(D′R)₆-M [M:trimethylsiloxane group; D: dimethylsiloxane group; D′: substituted dimethylsiloxane group and R=CH₂CH₂CH₂-O- (EO)₈-H] with a mean molar weight of 4 046.0, (2) AllyloxyPolyEthyleneGlycol (APEG) with a mean molar weight of 410.0 and (3) polyethylene glycol (PEG) with a mean molar weight 370.0. Furthermore, trace amount of compounds derived from allyl group were identified.

Key words: NMR, FT-IR, characterization, organosiloxane, surfactant, polyurethane

CLC Number:

O482.53

LI Chun-fa*，ZHU Xue-rong . An NMR and FT-IR Study on Polyether Modified Silicon Surfactant[J]. Chinese Journal of Magnetic Resonance.

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