Isobutylene-based cationic salt polymer, preparation method therefor, use thereof, and antibacterial polymer material

An isobutylene-based cationic salt ionic polymer comprising a structural unit A, a structural unit B, and a structural unit C;

• the structural unit A has a structure represented by formula (2) and/or formula (3), and optionally a structure represented by formula (1);
• the structural unit B has a structure represented by formula (4);
• and the structural unit C has a structure represented by formula (5);
• wherein R1 is C1-C4 alkylene, and R2 is C1-C4 alkyl;
• Q is
• wherein R3, R4, and R5 are each independently C1-C20 straight chain alkyl, C1-C20 branched chain alkyl, or C6-C20 aryl;
• R6, R7, and R8 are each independently C1-C10 straight chain alkyl, C1-C10 branched chain alkyl, C3-C10 cycloalkyl, or C6-C10 aryl;
• R9 is hydrogen, C1-C20 straight chain alkyl;
• R10, R11, and R12 are each independently hydrogen, halogen atom, C1-C10 straight chain alkyl, C1-C10 branched chain alkyl, hydroxyl, nitro, —(CH2)n—NH2, cyano group, or C6-C10 aryl;
• n is an integer between 0 and 5;
• R13, R14, R15, R16, and R17 are each independently hydrogen, halogen atom, C1-C20 straight chain alkyl, C1-C20 branched chain alkyl, nitro, amino, or cyano group;
• X is Cl, or Br.