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Synthesis and properties of polymeric biocides based on poly(ethylene‐ co ‐vinyl alcohol)
Author(s) -
Park EunSoo,
Kim Hye Kyung,
Shim Jae Hun,
Kim MalNam,
Yoon JinSan
Publication year - 2004
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.20534
Subject(s) - vinyl alcohol , vinyl acetate , antimicrobial , saponification , ethylene , polymer chemistry , chemistry , ethylene vinyl acetate , benzoic acid , salicylic acid , nuclear chemistry , alcohol , polymer , organic chemistry , materials science , copolymer , catalysis , biochemistry
Poly(ethylene‐ co ‐vinyl acetate) with 55 wt % vinyl acetate units (EVA55) was cryogenically ground and saponified in KOH/ethanol solution to obtain poly(ethylene‐ co ‐vinyl alcohol) (EVOH55). Polymeric antimicrobial agents were synthesized by reacting three antimicrobial agents, 4‐aminobenzoic acid (ABA), salicylic acid (SA), and 4‐hydroxy benzoic acid (HBA) with EVOH55. The polymers became more flexible and exhibited lower melting peak temperature and heat of fusion as the content of the chemically bound ABA, SA, and HBA units increased. These phenomena appeared more significant in the order of ABA < HBA < SA. S. aureus, Gram‐positive bacterium, was more susceptible to the polymeric antimicrobial agents than P. aeruginesa, Gram‐positive bacterium. The antimicrobial activity increased in the order of EVOH55‐HBA < EVOH55‐ABA < EVOH‐SA. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 93: 765–770, 2004