Abstract
Dual-functional antifogging/antimicrobial polymer coatings were prepared by forming a semi-interpenetrating polymer network (SIPN) of partially quaternized poly(2-(dimethylamino)ethyl methacrylate-co-methyl methacrylate) and polymerized ethylene glycol dimethacrylate network. The excellent antifogging behavior of the smooth coating was mainly attributed to the hydrophilic/hydrophobic balance of the partially quaternized copolymer, while the covalently bonded, hydrophobic quaternary ammonium compound (5 mol % in the copolymer) rendered the coating strongly antimicrobial, as demonstrated by the total kill against both Gram-positive Staphylococcus epidermidis and Gram-negative Escherichia coli. The antimicrobial action of the SIPN coating was based on contact killing, without leaching of bactericidal species, as revealed by a zone-of-inhibition test. This type of dual-functional coating may find unique applications where both antimicrobial and antifogging properties are desired.
| Original language | English |
|---|---|
| Pages (from-to) | 8737-8742 |
| Number of pages | 6 |
| Journal | ACS applied materials & interfaces |
| Volume | 8 |
| Issue number | 13 |
| DOIs | |
| State | Published - Apr 20 2016 |
Keywords
- antifogging
- antimicrobial
- functional coating
- quaternary ammonium compound (QAC)
- semi-interpenetrating polymer network (SIPN)