Branched polyamino acid bacteriostatic agent and application thereof

A branched poly(amino acid) antimicrobial agent, comprising a branched poly(amino acid);

• the branched poly(amino acid) is obtained by the homopolymerization of one amino acid unit, or by the copolymerization of two or more amino acid units;
• the amino acid unit has a structure of Formula I or salts thereof:
• wherein,
• a, b, c, d, e, and f are independently an integer of 0˜6, and 1≤a+b+c+d+e+f≤20, preferably a+b+c+d+e+f≤10;
• T1, T2, T3, T4, T5, and T6 are independently selected from the group consisting of hydrogen, hydroxyl, mercapto, amino, carboxyl, C1˜C18 alkyl and derivatives thereof, C6˜C30 aryl and derivatives thereof, C3˜C8 cycloalkyl and derivatives thereof, C2˜C8 alkenyl and derivatives thereof, C2˜C8 alkynyl and derivatives thereof, C1˜C8 alkoxy and derivatives thereof, C1˜C8 alkylthio and derivatives thereof, carboxylic acid and derivatives thereof, amine and derivatives thereof, nitrogen-containing heterocyclic group and derivatives thereof, oxygen-containing heterocyclic group and derivatives thereof, or sulfur-containing heterocyclic group and derivatives thereof.