Please use this identifier to cite or link to this item:
Title: Tadpole-shaped amphiphilic block-graft copolymers prepared via consecutive atom transfer radical polymerizations
Authors: Fu, G.D.
Phua, S.J.
Kang, E.T. 
Neoh, K.G. 
Issue Date: 5-Apr-2005
Citation: Fu, G.D., Phua, S.J., Kang, E.T., Neoh, K.G. (2005-04-05). Tadpole-shaped amphiphilic block-graft copolymers prepared via consecutive atom transfer radical polymerizations. Macromolecules 38 (7) : 2612-2619. ScholarBank@NUS Repository.
Abstract: Tadpole-shaped (or rod-coil) block-graft copolymers, consisting of a pentafluorostyrene polymer (PFS) block and a glycidyl methyacrylate polymer (PGMA) block with grafted poly(tert-butyl acrylate) (PtBA) side chains, or PFS-b-(PGMA-g-PtBA) copolymers, were synthesized by consecutive atom transfer radical polymerizations (ATRP's). The process involved (i) synthesis of PFS via ATRP, (ii) synthesis of well-defined PFS-b-PGMA via ATRP, (iii) coupling of the bromoacid initiators with the glycidyl methacrylate units in the PGMA block to generate the PFS-b-PGMA macroinitiators, and (iv) ATRP-mediated graft copolymerization with tert-butyl acrylate to generate the PFS-b-(PGMA-g-PtBA) copolymer. Hydrolysis of the PtBA side chains in the block-graft copolymer into the acrylic acid polymer (PAAC) side chains gave rise to an amphiphilic PFS-b-(PGMA-g-PAAC) macromolecule with a brush-shaped hydrophilic head (rod) and a hydrophobic tail (coil). The copolymers were characterized by composition analysis, gel permeation chromatography (GPC), thermogravimetric analyses (TGA), nuclear magnetic resonance (NMR) spectroscopy, and X-ray photoelectron spectroscopy (XPS). The macromolecular architecture of the copolymer was suggested by atomic force microscopy (AFM) images and micelle formation. © 2005 American Chemical Society.
Source Title: Macromolecules
ISSN: 00249297
DOI: 10.1021/ma048242x
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Mar 18, 2019


checked on Mar 18, 2019

Page view(s)

checked on Mar 16, 2019

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.