Storage stable polyhydroxylated aromatic ether adducts of polyalkylene oxide are described. Reactive compositions are formed by combining an ether adduct with an aldehyde, optionally further adding a phenolic-aldehyde prepolymer. The reactive compositions are cured by removing water, by acidification, or both. The cured compositions sorb solvated compounds from environments containing water. The cured compositions are also useful for pre-loading with compounds that are subsequently released at a controlled rate into environments containing water.

Storage stable polyhydroxylated aromatic ether adducts of polyalkylene oxide are described. Reactive compositions are formed by combining an ether adduct with an aldehyde, optionally further adding a phenolic-aldehyde prepolymer. The reactive compositions are cured by removing water, by acidification, or both. The cured compositions sorb solvated compounds from environments containing water. The cured compositions are also useful for pre-loading with compounds that are subsequently released at a controlled rate into environments containing water.

The present invention provides adhesive hydrogels that negatively swell at physiological temperature. By combining mussel-mimetic chemistry and the thermosensitive nature of poly(ethylene oxide)-poly(propylene oxide) copolymers, novel materials were designed that are suitable as medical sealants and adhesives.

Modified chemical structures of cardanol extracted from cashew nut shell oil, and the use of the same to prepare imidazolium ionic liquids (IILs). The IILs can be used to prepare different types of silica, magnetite and calcium carbonate nanoparticles (NPs) as multifunctional oilfield chemicals for use in various oil spill collection, de-emulsification, viscosity improvement, asphaltene dispersant, and enhanced oil recovery applications.

A hydrophilic polymer derivative having a cyclic benzylidene acetal linker represented by the following formula (1):

##STR00001##

wherein R.sup.1 and R.sup.6 are each independently a hydrogen atom or a hydrocarbon group; R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are each independently an electron-withdrawing or electron-donating substituent or a hydrogen atom; X.sup.1 is a chemically reactive functional group; P is a hydrophilic polymer, s is 1 or 2, t is 0 or 1, and s+t is 1 or 2; w is an integer of 1 to 8; and Z.sup.1 and Z.sup.2 are each independently a selected divalent spacer.

The present invention relates to a process for the synthesis of partially and fully fluorinated polyether (PFPE) polymers comprising cyclic moieties in the backbone chain, to PFPE polymers obtained therefrom and to the use of said PFPE polymers as intermediate compounds for the manufacture of additives for plastic and glass coating.

An acetal-type releasable polyoxyethylene derivative is expressed by the Formula (1), (2), (3) or (4) as defined herein, and cleaved under a physiological condition, and in the formulas (1), (2), (3) and (4), B.sup.1 represents a hydrogen atom or C(R.sup.1)(R.sup.2)OC(O)E.sup.1, E.sup.1 represents a leaving group, P.sup.1 represents a polyoxyethylene derivative having a dehydroxylated group, w represents an integer of 1 to 8, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.11 each independently represent a hydrocarbon group having 1 to 10 carbon atoms or a hydrogen atom, R.sup.6, R.sup.7, R.sup.8, R.sup.9 and R.sup.10 each independently represent an electron-withdrawing substituent, an electron-donating substituent, or a hydrogen atom, and m represents 0 or 1.

There is provided a fluorine-containing ether compound represented by the following formula: R.sup.1R.sup.2CH.sub.2R.sup.3[CH.sub.2R.sup.4CH.sub.2R.sup.3].sub.nCH.sub.2R.sup.5R.sup.6 (n is 1 or 2; R.sup.3 and R.sup.3 are a perfluoropolyether chain; R.sup.4 is a divalent linking group having one polar group; R.sup.2 and R.sup.5 are a divalent linking group having one or more polar groups; R.sup.2 has an oxygen atom at an end that is bonded to R.sup.1; R.sup.5 has an oxygen atom at an end that is bonded to R.sup.6; R.sup.1 and R.sup.6 in end group bonded to an oxygen atom at an end of R.sup.2 or R.sup.5; and R.sup.1 and R.sup.6 are an organic group having 1 to 50 carbon atoms, and at least one of them is a group in which a carbonyl carbon atom or nitrogen atom constituting an amide bond is bonded to a carbon atom of an organic group having 1 to 8 carbon atoms).