| 摘要 |
A composition comprising a hydrocarbon polymer having Mn ranging from 20,000 to about 500,000, when the polymer is not a star polymer, and up to about GPC peak molecular weight of 4,000,000 when the polymer is a star polymer having attached thereto pendant groups Aa and Bb wherein each A is independently selected from members of the group consisting of: groups of the formula <CHEM> wherein R<3> is H or hydrocarbyl, R<4> is a divalent hydrocarbylene group, n = 0 or 1, and each of R<9> and R<10> is independently H, alkoxyhydrocarbyl, hydroxyhydrocarbyl, hydrocarbyl, aminohydrocarbyl, N-alkoxyalkyl- or hydroxyalkyl-substituted aminohydrocarbyl, or a group of the formula &lparstr& Y &rparstr& cR<11>-M, wherein each Y is independently a group of the formula <CHEM> each R<11> is a divalent hydrocarbyl group, R<12> is as defined above for R<9> and R<10>, and M is H, hydrocarbyl, amino, an amide group, an amide-containing group, an acylamino group, an imide group, or an imide-containing group, and c is 0 or a number ranging from 1 to about 100, or one of R<9> and R<10> taken together with the adjacent N constitute a N-N group; and each B is independently selected from members of the group of formula: <CHEM> wherein each X is independently O, S, or NR<b>, each R<b> is independently H, NH2, hydrocarbyl, hydroxy-hydrocarbyl or aminohydrocarbyl, and each Z is independently a group of the formula |
