Polysiloxane and textile auxiliary containing a polysiloxane

A polysiloxane of the general formula (I)

• where m is an integer from 5-200,
• n is an integer from 0-25,
• k is an integer from 1-25,
• R1 is an aliphatic C1 to C30 radical or a phenyl radical,
• R2 is an aliphatic C9 to C30 radical and/or a polyether radical of the general formula (CH2)3O(C2H4O)x(C3H6O)yQ, where x and y may be the same or different and are each an integer between 0 and 50 and Q is hydrogen or an alkyl radical of 1 to 4 carbon atoms,
• R3 is an epoxidic radical,
• E is an MZ radical, R3 or R2,
• each molecule containing at least one epoxidic radical and one MZ radical,
• the epoxidic radical being selected from the group consisting of
• M being selected from the group consisting of
• Z being selected from the group consisting of
• where the quaternary nitrogen atom of the Z radical is attached to the M radical via the carbon atom adjacent to the C—OH group in the M radical,
• R4, R5 and R6 may be the same or different and may denote H, C1 to C22 alkyl, C1 to C22 alkenyl, which alkyl or alkylene radicals may contain hydroxyl groups,
• R8 and R9 may be the same or different and each has the same meaning as R4, R5 and R6 or are fluorine-, chlorine- or bromine-substituted C1 to C10 alkyl radicals,
• R10 is an —O— or an NR11 radical where R11═H, C1 to C4 alkyl or C1 to C4 hydroxyalkyl,
• o is an integer from 1 to 4,
• A⊖ is an organic or inorganic anion derived from a customary physiologically tolerable acid HX, where the epoxidic radical is selected from ether epoxies, where the M component of the MZ radical is selected from primary/secondary straight chain alcohols, and where the Z component of the MZ radical is selected from guaternary ammoniums.