摘要:
The present invention relates to polymers represented by the following formula (I): The invention further provides methods for their preparation and methods for site-specific delivery of nucleic acids by combining them with targeting ligands, endosomolytic ligands and/or PK modulator ligands.
摘要:
The invention relates to polyformals and copolyformals with reduced water absorption, methods for the production thereof, the use thereof for producing certain products, and the products that can be obtained therefrom.
摘要:
Low foaming surfactants and/or defoaming agents, which are products of reactants comprising A) at least one compound having the formula (I) below RX(EO)n(PO)m(BO)pH (I) wherein R is a substituted or unsubstituted, saturated or unsaturated, organic group having from ç to 36 carbon atoms; X is O-, -S-, or NR - where R is hydrogen or a C1-C8 alkyl group; n is a number of from 0 to 100; m is a number of from 0 to 50; and p is a number of from 0 to 50; provided that the sum of n, m, and p is at least 1; wherein EO represents the residue of ethylene oxide, PO represents the residue of propylene oxide, and BO represents the residue of butylene oxide; and wherein the EO, PO, and BO groups when present can be in random and/or block distribution and can be in any order with respect to the X group; and B) a polycarboxylic acid or derivatives thereof of formula (II) R (COY)x (II) wherein R is a substituted or unsubstituted, saturated or unsaturated, organic group having from 3 to 36 carbon atoms, Y is independently halogen, or OR where R is hydrogen, a C1-C4 alkyl group, or any two COOR groups can form a carboxylic anhydride group; and x is a number of from 3 to 10.
摘要:
Reaction products of A) an amine formula (I) RX (EO)n (PO)m (BO)p ZNHR1 wherein R is a substituted or unsubstituted, saturated or unsaturated, organic group having from 4 to 36 carbon atoms, R1 is hydrogen or a C1-C20 straight or branched chain alkyl group, optionally substituted with a hydroxyl group, X is -O-, -S-, or -NR3- where R3 is hydrogen or a C1-C4 alkyl group, Z is ethylene, propylene or butylene, n is a number of from 0 to 100, m is a number of from 0 to 50: and p is a number of from 0 to 50, provided that the sum of n, m and p is at least one; ans B) a multifunctional compound of formula (II) R2(Y)m where R2 is a straight or branched chain alkyl, alkenyl, or cycloaliphatic group having from 2 to 30 carbon atoms, or an unsubstituted or alkyl substituted aromatic group, the Y groups are carboxyl, carboxylic anhydride, halogen, carbonyl, acetyl halide, keto, aldehyde, or epoxy, and m is a number of from 2 to, and wherein the Y groups can be the same or different; and liquid compositions containing them.
摘要:
Glycerinacetalpolyether der allgemeinen Formel (I) oder (II), worin R 1 , R 2 , R 3 , R 4 , R 5 und n die in der Beschreibung angegebene Bedeutung haben, eignen sich als Elektrolytlösungsmittel in einer Lithiumzelle, insbesondere einer Lithium-Schwefel-Zelle. Ihr Hydroxylgehalt ist vorzugsweise kleiner als 0,2 Gew.-%. Bei einem Verfahren zu ihrer Herstellung setzt man Glycerinacetalpolyether-Alkohole mit einem C 1 -C 18 Mono- oder Dialkylsulfat oder C 1 -C 18 Mono- oder Dialkylsulfonat in Gegenwart eines Erdalkalioxides um.
摘要:
Suggested are alkoxylated glycerol acetals according to formulae (Ia) and (Ib) in which R1 stands for a linear or branched, saturated or unsaturated and optionally substituted hydrocarbyl residue comprising 6 to 22 carbon atoms and O or 1 to 3 double bonds, a benzyl or furfuryl radical, R2 stands for hydrogen, an alkyl, alkenyl or hydroxyalkyl group having 6 to 22 carbon atoms or an acyl group having 6 to 22 carbon atoms and 0 or 1 to 3 double bonds, AO represents an ethylene oxide, an propylene oxide, an butylene oxide unit or their mixtures, and n stands for an integer of about 1 to about 100.
摘要:
The present invention relates to polymers represented by the following formula (I): The invention further provides methods for their preparation and methods for site-specific delivery of nucleic acids by combining them with targeting ligands, endosomolytic ligands and/or PK modulator ligands.
摘要:
The reaction product of (a) a polyol having from 2 to 30 carbon atoms and from 2 to 12 hydroxyl groups, or an alkyl polyglycoside, with (b) an alkoxide of formula (I) where R3, R4, R5 and R6 are each independently hydrogen or a C1-C4 alkyl group. The above reaction products can then optionally be capped with one or more hydrophobic groups of the formula R7X. The invention also relates to uses therefor as surfactants and defoaming agents in aqueous and nonaqueous liquid compositions.
摘要:
Reaction products of the reaction between reactants comprised of the following: A) at least one compound of formula (1) below wherein R is a substituted or unsubstituted, saturated or unsaturated, organic group having from 4 to 36 carbon atoms; X is-0-, -S-, or NR2- where R2 is hydrogen or a C1-C8 alkyl group; n is a number from 0 to 100; m is a number from 0 to 50; and p is a number from 0 to 50; provided that the sum of n, m, and p is at least 1; and B) a polyaldehyde of formula (II) below where R1 is a C1-C30 straight or branched chain optionally substituted alkyl or alkenyl group, and optionally substituted aromatic group, or an optionally substituted cycloalkyl or cycloalkenyl group; x is 0 or 1; and h is a number of at least two.
摘要:
A method of creating a hydrogel, comprising the step of condensing first and second functional groups, wherein the first group comprises a molecule or macromolecule of interest containing two or more hydroxylamine or aminooxy groups and the second group comprises a molecule or macromolecule of interest containing two or more aldehyde/ketone/other reactive oxo groups, under conditions such that a hydrogel forms.