Please use this identifier to cite or link to this item:
Title: Interfacial behaviors of densely anchored hydrophilic oligomeric chains on silica microspheres
Authors: Zhang, X.
Hong, L. 
Liu, Z.
Lee, J.-Y. 
Keywords: Atom transfer radical polymerization
Interfacial phenomena
Issue Date: Dec-2008
Citation: Zhang, X., Hong, L., Liu, Z., Lee, J.-Y. (2008-12). Interfacial behaviors of densely anchored hydrophilic oligomeric chains on silica microspheres. Colloid and Polymer Science 286 (12) : 1351-1360. ScholarBank@NUS Repository.
Abstract: This work studies the interfacial behaviors of a thickly grafted hydrophilic oligomeric layer on silica microspheres (d ≅ 1 μm). The surface layer comprises the homopolymer or block-copolymer chains of sodium 4-styrenesulfonate (SSNa) and 4-vinylpyridine (4VP). Such a core-shell microspheric structure is constructed by the atom transfer radical polymerization method. Two types of block-copolymer chains are synthesized through reversing the chain growing sequence of PSSNa and P4VP blocks, a copolymer double layer is, therefore, generated. It is found that these two block-sequences produce rather different impacts on the chain-chain interaction patterns. Furthermore, the functional group type and the sequence of the grafted copolymer blocks influence the hydrodynamic volume of the particles in the designated dispersion media with different pH or polarity. More appealingly, the two types of double-layers exhibit very different roles in mediating ion (H+ or Na+) transport in the liquid medium where a substantially low content of the microspheres is present. © Springer-Verlag 2008.
Source Title: Colloid and Polymer Science
ISSN: 0303402X
DOI: 10.1007/s00396-008-1905-z
Appears in Collections:Staff Publications

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


checked on Jan 12, 2019


checked on Jan 2, 2019

Page view(s)

checked on Oct 12, 2018

Google ScholarTM



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