| 摘要 |
The present invention relates to novel hydrophobic soil dispersants having the formula: wherein A units are arylene units, one of which is phenyl, anthryl, or phenanthryl; each R is independently hydrogen, linear or branched C1-C4 alkyl, -O(R3O)mR4 and mixtures thereof; R3 is C2-C4 linear or branched alkylene, R4 is hydrogen, C1-C4 alkyl, phenyl, phenyl sulphonate, -CH2CH(SO3M)CH2OH, -CH2CH(OH)CH2SO3M, -(CH2)eSO3M, -(CH2)fCO2M, -(CH2)eCH(SO3M)-CH2SO3M, -(CH2)eCH(SO2M)-CH2SO3M, -(CH2)fPO3M, -PO3M, or mixtures thereof; M is hydrogen or a water-soluble cation, the index f is an integer from 1 to 6, the index e is an integer from 0 to 6, m is an integer from 0 to 25; R1 is a sulphonate group; R2 is an amino group; [CAP] is a chain capping unit selected from i) hydrogen; ii) an aryl unit having the formula: iii) an aryl unit having the formula: iv) an aryl unit having the formula: v) an aryl unit having the formula: vi) and mixtures thereof; R5 is hydrogen, -CH2OH, -CH2OSO3M, -CH3, and mixtures thereof; the index n has an average value of from 8 to 25; the index p is 0 or 1; the index q is 0 or 1; the index t is 0 or
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