Making thin polymeric materials, including fabrics, microbicidal and also water-repellent.
A procedure is developed and validated for making a non-functionalized polyolefin fabric/film highly bactericidal and fungicidal which involves a free-radical grafting of maleic anhydride, followed by an attachment of polyethylenimine (PEI) and its subsequent N-alkylation. Separately, cotton fabric coated with a micron layer of a hydrophobic polymer using hot-filament chemical vapor deposition is rendered markedly hydrophobic; if this coating is preceded by immobilization of N-alkyl-PEI, the fabric becomes both water-repellent and bactericidal.
Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
Jian
J
Lin
Shashi K
SK
Murthy
Bradley D
BD
Olsen
Karen K
KK
Gleason
Alexander M
AM
Klibanov
D001419:Bacteria / Q000254:growth & development*; D015169:Colony Count, Microbial; D005658:Fungi / Q000254:growth & development*; D057927:Hydrophobic and Hydrophilic Interactions; D008422:Materials Testing; D008567:Membranes, Artificial; D008968:Molecular Conformation; D011094:Polyethyleneimine / Q000138:chemical synthesis / Q000737:chemistry*; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry; D013242:Sterilization / Q000379:methods*; D013499:Surface Properties; D013784:Textiles; D014867:Water / Q000737:chemistry*
D008567:Membranes, Artificial; D011108:Polymers; D014867:Water; D011094:Polyethyleneimine