Please use this identifier to cite or link to this item: https://doi.org/10.1039/c3py21080d
Title: A water-soluble conjugated polymer brush with multihydroxy dendritic side chains
Authors: Zhou, L.
Geng, J.
Wang, G.
Liu, J.
Liu, B. 
Issue Date: 21-Oct-2013
Source: Zhou, L., Geng, J., Wang, G., Liu, J., Liu, B. (2013-10-21). A water-soluble conjugated polymer brush with multihydroxy dendritic side chains. Polymer Chemistry 4 (20) : 5243-5251. ScholarBank@NUS Repository. https://doi.org/10.1039/c3py21080d
Abstract: A brush-like water-soluble conjugated polymer bearing a poly[9,9′-dihexylfluorene-co-alt-4,7-(2,1,3-benzothiadiazole)] (PFBT) backbone and multihydroxy hyperbranched polyglycerol (HPG) side chains is facilely synthesized by combination of "grafting from" strategy and the ring-opening polymerization (ROP) technique. The PFBT-g-HPG brush shows bright fluorescence in water with an emission maximum at 587 nm and a quantum yield of 15%. Laser light scattering (LLS), transmission electron microscopy (TEM) and atomic force microscopy (AFM) analyses reveal that PFBT-g-HPG adopts a spherical shape in water and a wormlike conformation in N,N-dimethylformamide (DMF). PFBT-g-HPG shows stable fluorescence against the variation of pH and ionic strength as well as interference of biomolecules. MCF-7 cancer cell imaging results show that the PFBT-g-HPG exhibits low cytotoxicity and high photostability, which allows fluorescence imaging in a high contrast manner. On the basis of the numerous hydroxyl groups of the grafted HPG, post-functionalization of PFBT-g-HPG could afford various PFBT-g-HPG-based brushes with adjustable surface functionality (e.g., carboxylic groups) and solubility. This study thus provides a versatile brush approach to water-soluble conjugated polymers for advanced sensing and imaging applications. © 2013 The Royal Society of Chemistry.
Source Title: Polymer Chemistry
URI: http://scholarbank.nus.edu.sg/handle/10635/63423
ISSN: 17599954
DOI: 10.1039/c3py21080d
Appears in Collections:Staff Publications

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

SCOPUSTM   
Citations

14
checked on Dec 6, 2017

WEB OF SCIENCETM
Citations

16
checked on Nov 22, 2017

Page view(s)

37
checked on Dec 17, 2017

Google ScholarTM

Check

Altmetric


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