| 主权项 |
1. A silicon-containing linear copolymer comprising repeating units in a backbone of the copolymer and at least one zwitterionic linking group linking units in the backbone of the copolymer, the linking group having the general structures: wherein:
Y− is an anionic radical, independently chosen from: —(CR1R2)bCOO−, —(CR3R4)cSO3−, and —(CR5R6)dP(O)(OR7)O−, wherein:
R1, R2, R3, R4, R5, R6 and R7 are independently selected from hydrogen, monovalent organic radical containing 1 to 60 carbon atoms and may contain heteroatoms, the subscript b is 1 to 60, c is 3 to 60 and d is 3 to 60;Z of formula (I) is a monovalent radical independently chosen from:a) organic radical containing 1 to 200 carbon atoms and may contain heteroatoms,b) hydrogen, andc) an organosilicone radical given by—
MeMAfMSgMDhDiDDjTkTDlQo (III) wherein M=R8R9R10SiO1/2, MA=R11R12R13SiR14, MS=R15p(R16O)qSiR17, MD=R18R19R20SiO1/2, D=R21R22SiO2/2, DD=R23R24SiO2/2, T=R25SiO3/2, TD=R26SiO3/2 and Q=SiO4/2; where
R8, R9, R10, R18, R19, R21, R22, R23, R24 and R25 are each independently selected from the group of monovalent hydrocarbon radicals having from 1 to 60 carbon atoms, may optionally contain heteroatoms;R11, R12, R13, R15 and R16 are independently selected from the group of monovalent hydrocarbon radicals having 1-20 carbons;R14, R17, R20 and R26 are linear or branched divalent radicals containing 1 to 60 carbon atoms and may contain heteroatoms;the subscript f is 0 or 1 subject to the limitation if h is 1 then e+g+i+j+k+l+o=0,the subscripts e, g, h, i, j, k, and l are zero or positive and have values ranging from about 0 to 10,the subscripts p and q are zero or positive subject to the limitation that if g is positive p+q=3;Z* of formula (II) is a monovalent zwitterionic group with the general structure
—XN+(R27R28)Y−, wherein
X is a divalent organic radical with 2 to 20 carbon atoms and optionally containing heteroatoms,R27 and R28 are monovalent radicals with 1 to 20 carbon atoms and optionally having heteroatoms. |
