| abstract |
An amphiphilic macromolecule having, as repeating units, a structural unit A for adjusting molecular weight, molecular weight distribution, and charge characteristics; a highly sterically hindered structural unit B; and an amphiphilic C structural unit, wherein the amphiphilic C structural unit has a structure of formula (8): ** Formula ** in formula (8), R9 is H or a methyl group; R10 is -N + (CH3) 2 (CH2) ξCH3X-, -N + ((CH2) δCH3) 3X- or -N + (CH3) ((CH2) tCH3) 2X-; ξ is an integer from 3 to 21; σ is an integer from 2 to 9; t is an integer from 3 to 15; X- is Cl- or Br-, characterized in that the highly hindered structural unit B contains a G structure, the G structure being a cyclic hydrocarbon structure formed on the basis of two adjacent carbon atoms in the main chain, or by selecting of a structure of formula (3), and the highly hindered structural unit B optionally contains a structure of formula (4): ** Formula ** wherein, in formula (3), R5 is H or a methyl group ; R6 is a radical selected from the structures of formula (5) and of formula (6). ** Formula ** in formula (5), a is an integer from 1 to 11; in formula (4), R7 is H or a methyl group; R8 is selected from the group consisting of -NHPhOH, -OCH2Ph, -OPhOH, -OPhCOOH and its salts, -NHC (CH3) 2CH2SO3H and its salts, -OC (CH3) 2 (CH2) bCH3, -NHC (CH3) 2 (CH2) cCH3, -OC (CH3) 2CH2C (CH3) 2 (CH2) dCH3, -NHC (CH3) 2CH2C (CH3) 2 (CH2) eCH3, -O (CH2) fN + (CH3) 2CH2PhX -, ** Formula ** where b and c are integers from 0 to 21 respectively; d and e are integers from 0 to 17 respectively; f is an integer from 2 to 8; and X- is Cl- or Br. |