2,2,3,3-Tetrafluorobutane-1,4-diol
نویسندگان
چکیده
In the title compound, C(4)H(6)F(4)O(2), a partially fluorinated aliphatic diol, cooperative O-H⋯O hydrogen bonds form R(2) (2)(14) rings, which are connected into infinite layers parallel to the (100) plane by C(7) chains. A C-H⋯F link is also seen.
منابع مشابه
سنتز و شناسایی پلی(2-بوتین-1و4-دیال-کو-مالیک اسید) به عنوان بایندر خنثی و مشبک کردن با گلیسیدیل آزید پلیمر
Unsaturated polyesters have several applications in organic chemistry such as click reaction, radical reaction, etc. In this research, in the first step, a new and inert type of unsaturated binder containing internal alkyne groups was synthesized. For this purpose, condensation polymerization of 2-butyne-1,4-diol, and DL-malic acid was performed at 130 °C without solvent. Thermal properties w...
متن کاملComparison of phase structures and surface free energy values for the coatings synthesised from linear polyurethanes and from waterborne polyurethane cationomers
WAXS, DSC and AFM methods were employed to compare phase structures of the coatings obtained from waterborne polyurethane cationomers which had been synthesised in the reaction of some diisocyanates (MDI, IPDI, TDI and HDI) with polyoxyethylene glycols (M = 600 and 2,000) and butane1,4-diol or N-methyl- or N-butyldiethanolamine and 2,2,3,3-tetrafluoro-1,4-butanediol. The structures were also an...
متن کاملSurface free energy of polyurethane coatings with improved hydrophobicity
The polarity of polyurethane coats was studied on the basis of the goniometric method for determination of wetting angle values, on the basis of calculated surface free energy (SFE) values by the van Oss-Good and Owens-Wendt methods, and on the basis of polarity measurements with the use of the (1)H NMR spectra. Test polyurethanes were synthesised in the reaction of methylene diphenyl 4,4'-diis...
متن کاملSynthesis and surface properties of environmentally responsive segmented polyurethanes.
Polyurethanes, containing well-defined assemblies of perfluoro-polyether (PFPE or hexafluoropropene oxide oligomer), polydimethylsiloxane (PDMS), and polyethylene glycol (PEG) segments, exhibit oleophobic, hydrophobic, and hydrophilic properties in response to the polarity of the contacting medium. These polymers were prepared by reacting hydroxy(polyethyleneoxy)-propylether-terminated PDMS blo...
متن کاملRegioselective synthesis of aniline-derived 1,3- and Ci-symmetric 1,4-diols from trans-1,4-cyclohexadiene dioxide.
trans-Diepoxide 1 is well-known to react with aliphatic amines and the azide ion to give exclusively the 1,3-diol products. However, we observed that by judicious choice of conditions, reaction with anilines can give predominantly the 1,3-diol (3) or the heretofore rarely seen C(i)-symmetric 1,4-diol (4). Synthesis of an unsymmetrical 1,4-diol from two different anilines is also demonstrated. T...
متن کامل