| 摘要 |
The present invention relates to a disiloxane surfactant exhibiting resistance to hydrolysis over a wide pH range, which comprises an organic silicon composition comprising an organic silicon having the formula MM', where M is R<1>R<2>R<3>SiO1/2; M' is R<4>R<5>R<6>SiO1/2; wherein R<1> is selected from the group consisting of branched monovalent alkyl having 3 to 6 carbon atoms and R<7> having theformula R<8>R<9>R<10>SiR<12>, wherein R<8>, R<9> and R<10> are independently selected from the group consisting of branched monovalent alkyl having 1 to 6 carbon atoms and monovalent aryl or monovalent alkyl aryl having 6 to 13 carbon atoms, R<12> is a bivalent alkyl having 1 to 3 carbon atoms, R<2> and R<3> are independently selected the group consisting of monovalent alkyl having 1 to 6 carbon atoms or R<1>, wherein R4 is an alkyl polyoxyalkylene having the following formula: R<13> (C2H4O) a (C3H6O)b(C4H8O)c R<14>, wherein R<13> is a bivalent linear chain or branched alkyl having the following structure: -CH2-CH(R<15>) (R<16>)dO-, wherein R<15> is H or methyl; R<16> is a bivalent alkyl having 1 to 6 carbon atoms, wherein d is 0 or 1; R<14> is selected from the group consisting of H, monovalent alkyl having 1 to 6 carbon atoms and acetyl, wherein a, b and c are selected from the group consisting of 0 or positive numbers, and satisfy the relation: 2<a+b+c<20, and a>2, and R<5> and R<6> are independently selected from the group consisting of monovalent alkyl having 1 to 6 carbon atoms or R<4>. |
