Graft polymerization of anti-fouling PEO surfaces by liquid-free initiated chemical vapor deposition

Ranjita K. Bose, Siamak Nejati, David R. Stufflet, Kenneth K.S. Lau

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

Poly(ethylene oxide) (PEO), a biomedically important polymer, has been synthesized using a novel liquid-free initiated chemical vapor deposition (iCVD) via a ring-opening cationic polymerization mechanism. In addition, a grafting scheme was used to graft polymerize PEO onto amine-terminated surfaces. FTIR, NMR, and XPS showed a stoichiometric match to linear PEO homopolymer. In addition, XPS confirmed the graft polymerization of PEO to amine anchors on silicon with a high graft density. XPS and GPC were used to measure independently the grafted polymer molecular weight that also showed a narrow weight distribution. The grafted iCVD PEO surfaces were effective in minimizing nonspecific protein adsorption using a fluorescently labeled bovine serum albumin assay.

Original languageEnglish (US)
Pages (from-to)6915-6922
Number of pages8
JournalMacromolecules
Volume45
Issue number17
DOIs
StatePublished - Sep 11 2012

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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