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Vapor‐Based Polymer Gradients
Author(s) -
Elkasabi Yaseen,
Lahann Joerg
Publication year - 2009
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200800578
Subject(s) - x ray photoelectron spectroscopy , polymer , chemical vapor deposition , polymerization , materials science , chemical engineering , deposition (geology) , surface modification , polymer chemistry , nanotechnology , composite material , paleontology , sediment , engineering , biology
Chemical vapor deposition (CVD) co‐polymerization was used to fabricate polymer coatings, which comprise of reactive surface composition gradients. Two functionalized derivatives of [2.2]paracyclophane were fed into a two‐source CVD system at a 180 ° angle, then copolymerized and deposited as a polymer gradient. Infrared and X‐ray photoelectron spectroscopy (XPS) confirmed the compositional changes within the bulk polymer and at the surface. By manipulating process parameters, gradients of tailored compositional slope can be deposited on a wide range of substrates. We also were able to selectively immobilize fluorescence‐labeled ligands onto the reactive polymer gradients, making CVD‐based gradient surfaces a flexible platform for fabricating biomolecular substrates.