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Title: Surface-initiated ring opening polymerization of N-carboxy anhydride of benzyl-L-glutamate monomers on soft flexible substrates
Authors: Duran, Hatice
Yameen, Basit
Khan, Hadayat Ullah
Foerch, Renate
Knoll, Wolfgang
Keywords: Polymer brushes
Plasma polymerization
Surface grafting
Soft polymeric surfaces
Issue Date: 2013
Publisher: Elsevier
Abstract: The potential of pulsed plasma deposited polyallylamine (PAA) adlayer has been successfully demonstrated for fabrication of polypeptide brushes functionalized soft flexible polymeric surfaces. Polymeric substrates functionalized with the plasma deposition PAA adlayer resulted in polymeric surfaces functionalized with amino groups, which are the suitable initiating moieties for ring-opening polymerization (ROP) of N-carboxy anhydride of benzyl-L-glutamate (NCA-BLG) monomer. Poly(gamma-benzyl-L-glutamate) (PBLG) brushes were grown on PM functionalized polypropylene (PP), and polytetrafluoroethylene (PTFE) polymeric substrates. These substrates were intentionally chosen for their inert chemical nature towards most wet chemical surface modification reactions. Surface grafted thin films of poly(gamma-benzyl-L-glutamate) PBLG on both the PP and PTFE polymeric substrates yielded high density PBLG brushes. PBLG chain orientation, secondary structure and grafting density were characterized by infra-red spectroscopy. The synthesis of PBLG brushes on a flexible polymeric substrate is unprecedented and technologically important, since PBLG possess good electro-optical activity. Analysis of brush layers by Attenuated Total Reflectance Infra-Red (ATR-IR) spectroscopy, X-ray photoelectron spectroscopy (XPS) as well as atomic force microscopy (AFM) fully corroborated the success of the plasma activated soft surface grafting approach. (C) 2013 Elsevier Ltd. All rights reserved.
ISSN: 1381-5148
Appears in Collections:Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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