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Silicon‐modified carbohydrate surfactants VI: Synthesis of carbosilane, silane, polysilane and non‐permethylated siloxane derivatives; the wetting behaviour of epoxy‐modified precursor liquids on non‐polar surfaces
Author(s) -
Wagner R.,
Richter L.,
Wu Y.,
Weiland B.,
Weissmüller J.,
Reiners J.,
Hengge E.,
Kleewein A.
Publication year - 1998
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/(sici)1099-0739(199801)12:1<47::aid-aoc670>3.0.co;2-a
Subject(s) - siloxane , chemistry , silane , silanes , wetting , contact angle , polymer chemistry , polysilane , surface tension , moiety , chemical engineering , organic chemistry , physics , quantum mechanics , engineering , polymer
The synthesis of carbohydrate surfactants bearing carbosilane, silane, polysilane and non‐permethylated siloxane moieties is described. These surfactants consist of three structural elements: (1) a silicon‐containing moiety, (2) a spacer and (3) a carbohydrate unit. Additionally two different types of mixed structures have been synthesized: (a) single‐chained carbosilane–siloxane surfactants and (b) double‐chained combinations of carbo‐ silanes, silanes and siloxanes. The wetting behaviour of the key intermediates, the allyl glycidyl derivatives, has been investigated by static surface tension (γ lv , σ) and wetting tension (γ sv −γ sl , α) measurements on a non‐polar perfluorinated surface (FEP® plate). The contact angles obtained for these pure liquids are not a linear function of the surface tension but depend on the polarity of the substructures. © 1998 John Wiley & Sons, Ltd.