Surface Analysis of Polystyrene-Grafted Keratin Fiber via Surface-Initiated Atom Transfer Radical Polymerization

Authors: Mu, Bin; Liu, Peng

Source: Designed Monomers & Polymers, Volume 11, Number 1, 2008 , pp. 97-104(8)

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Abstract:

A facile method for the controllable surface polymer-grafting modification of the natural fiber keratin was developed. The initiating groups were immobilized onto horse hair by the bromoacetylation of the surface amino end-groups of the keratin fiber with bromoacetyl bromide in presence of triethylamine. Then bromoacetylated horse hair was used as initiator for the surface-initiated atom transfer radical polymerization of styrene to form well-defined polystyrene (PS) brushes using Cu(I)Br/bpy as a catalytic system. The amount of polymer grafted onto the horse hair was 0.05 g on 1.0 g of keratin fiber. The surfaces of the PS-grafted horse hair were characterized by X-ray photoelectron spectroscopy and scanning electron microscopy.

Keywords: POLYSTYRENE; KERATIN FIBER; SURFACE INITIATION; ATOM TRANSFER RADICAL POLYMERIZATION; SURFACE ANALYSIS

Document Type: Regular paper

DOI: http://dx.doi.org/10.1163/156855508X292455

Affiliations: 1: Institute of Polymer Science and Engineering, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China

Publication date: 2008-02-01