A cationic block organopolysiloxane having the formula: MwDxTyQz wherein: M>； = [SiR1R2R3O1 / 2], [SiR1R2G1O1 / 2], [SiR1G1G2O1 / 2], [SiG1G2G3O1 / 2], or combinations thereof； D>； = [SiR1R2O2 / 2], [SiR1G1O2 / 2], [SiG1G2O2 / 2] or combinations thereof； T>； = [SiR1O3 / 2], [SiG1O3 / 2] or combinations thereof； Q>； = [SiO4 / 2]； w>； = is an integer from 1 to (2 + and + 2z)； x>； = is an integer from 5 to 15,000； y>； = is an integer from 0 to 98； z>； = is an integer from 0 to 98； R1, R2 and R3 are each independently selected from the group consisting of H, OH, C1-C32 alkyl, C1-C32 substituted alkyl, C5-C32 or C6-C32 aryl, C5-C32 or C6 substituted aryl -C32, C6-C32 alkylaryl, C6-C32 substituted alkylaryl, C1-C32 alkoxy, C1-C32 substituted alkoxy, C1-C32 alkylamino and C1-C32 substituted alkylamino； at least one of M, D, or T incorporates at least one residue G1, G2 or G3 and G1, G2, and G3 each is independently selected from the formula: ** Formula ** wherein: X comprises a selected divalent radical from the group consisting of C1-C32 alkylene, C1-C32 substituted alkylene, C5-C32 or C6-C32 arylene, C5-C32 or C6-C32 substituted arylene, C6-C32 arylalkylene, C6-C32 substituted arylalkylene, C1-C32 alkoxy , C1-C32 substituted alkoxy, C1-C32 alkyleneamino, C1-C32 substituted alkylene amino, with the proviso that if X does not comprise an alkylene oxide moiety that is repeated then X may further comprise a heteroatom selected from the group consisting of P , N and O； each R4 comprises identical or different monovalent radicals selected from the group consisting of H, C1-C32 alkyl, C1-C32 substituted alkyl, C5-C32 or C6-C32 aryl, C5-C32 or C6-C32 substituted aryl, C6-C32 alkylaryl and substituted C6-C32 alkylaryl； E comprises a divalent radical selected from the group consisting of C1-C32 alkylene, C1-C32 substituted alkylene, C5-C32 or C6-C32 arylene, C5-C32 or C6-C32 substituted arylene, C6-C32 arylalkylene, C6-substituted arylalkylene C32, C1-C32 alkoxy, C
