TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (Claimed): Preparing (M1) the branched crosslinker-containing poly(alkylene) oxide chain, involves reacting a branched poly(alkylene) oxide backbone, having a first reactive group and a second reactive group on the backbone, with 2-8 crosslinkers, each having a third reactive group, where the third reactive group of a crosslinker covalently bonds with the first reactive group, and the third reactive group of another crosslinker covalently bonds with the second reactive group to form a branched crosslinker-containing poly(alkylene) oxide chain, where each of the crosslinkers has 2-4 binding moieties. The process (M1) further involves: generating free radicals on the crosslinker-containing poly(alkylene) oxide backbone and reacting poly(alkylene) oxide side chains, each having a fourth reactive group at one end, with the crosslinker-containing poly(alkylene) oxide backbone to form a branched crosslinker-containing poly(alkylene) oxide chain, via covalent bonding of the fourth reactive group to the crosslinker-containing poly(alkylene) oxide backbone.Preferred Compounds: The monomer (A1) is a compound of formula (R3)(R4)N-CH(R5)-CH2-(O-CH2-CH(R6))x1-(O-CH2-CH2)x2-(O-CH2-CH(R7))x3-NR3R4 (I); or (R3a)(R4a)N-CH(R8)-CH2-(O-CH2-CH(R9))x1-(O-CH2-CH2)x2-(O-CH2-CH(R10))x3-NR3aR4a (II).R2 = H or alkyl;R3 = -CH2-CH(OH)-CH2-O-CH2-(CH2)n-CH2-Si(OH)3;R4 = -CH2-R3;R3a = -CH2-CH(OH)-CH2-O-CH2-(CH2)n1-CH2-Si(OH)3;R4a = -CH2-R3a;R5 = -COOCH2-CH(R2)-C(O)-(O-CH2)m1-CH2OH;R6 = -COOCH2-CH(R2)-C(O)-(O-CH2)m2-CH2OH;R7 = -COOCH2-CH(R2)-C(O)-(O-CH2)m3-CH2OH;n = 1-20;n1 = 1-10;m1-m3 = 5-500;x1-x3 = 2-500;R8 = -CH2-NH-(CH2-O-CH2)m1-CH3;R9 = -CH2-NH-(CH2-O-CH2)m2-CH3;R10 = -CH2-NH-(CH2-O-CH2)m3-CH3.    TECHNOLOGY FOCUS - POLYMERS - Preferred Process: The process (M3) further involves: generating free radicals on the poly(alkylene) oxide backbones, where the chains, via the reactive groups, covalently bond to the backbones. EXAMPLE - No suitable example given.