title: One-step dip coating of zwitterionic sulfobetaine polymers on hydrophobic and hydrophilic surfaces.
abstract: Zwitterionic sulfobetaine polymers with a catechol chain end (DOPA-PSB) were applied to a variety of hydrophobic polymer sheets and fibers. In addition, a silica surface was tested as a representative hydrophilic substrate. The polymer-coated surfaces showed significantly lower fouling levels than uncoated controls. Because of the anti-polyelectrolyte nature of sulfobetaine zwitterionic polymers, the effect of salt concentration on the coating solutions and the quality of the polymer coating against fouling are studied. The coating method involves only water-based solutions, which is compatible with most surfaces and is environmentally friendly. To demonstrate the versatility of the reported method, we evaluated the fouling levels of the polymer coating on commonly used polymeric surfaces such as polypropylene (PP), polydimethylsiloxane (PDMS), polystyrene (PS), nylon, polyvinyl chloride (PVC), and poly(methyl methacrylate) (PMMA).
authors.affiliation: Department of Chemical Engineering, University of Washington , Seattle, Washington 98195-1750, United States.
authors.forename: Harihara S
authors.initials: HS
authors.lastname: Sundaram
authors.forename: Xia
authors.initials: X
authors.lastname: Han
authors.forename: Ann K
authors.initials: AK
authors.lastname: Nowinski
authors.forename: Jean-Rene
authors.initials: JR
authors.lastname: Ella-Menye
authors.forename: Collin
authors.initials: C
authors.lastname: Wimbish
authors.forename: Patrick
authors.initials: P
authors.lastname: Marek
authors.forename: Kris
authors.initials: K
authors.lastname: Senecal
authors.forename: Shaoyi
authors.initials: S
authors.lastname: Jiang