Please use this identifier to cite or link to this item:
|Title:||UV-induced coupling of 4-vinylbenzyl chloride on hydrogen-terminated Si(100) surfaces for the preparation of well-defined polymer-Si hybrids via surface-initiated ATRP|
|Authors:||Xu, F.J. |
|Source:||Xu, F.J., Kang, E.T., Neoh, K.G. (2005-03-08). UV-induced coupling of 4-vinylbenzyl chloride on hydrogen-terminated Si(100) surfaces for the preparation of well-defined polymer-Si hybrids via surface-initiated ATRP. Macromolecules 38 (5) : 1573-1580. ScholarBank@NUS Repository. https://doi.org/10.1021/ma049225a|
|Abstract:||The simple approach of UV-induced coupling of 4-vinylbenzyl chloride (VBC) with the hydrogen-terminated Si(100) (the Si-H) surface provided a stable Si - C bonded initiator monolayer (the Si - VBC surface) for the surface-initiated atom transfer radical polymerization (ATRP). Well-defined polymer - Si hybrids, consisting of covalently tethered polymer brushes of sodium 4-styrenesulfonate (NaStS) and polyethylene glycol) monomethacrylate (PEGMA) on single crystal silicon substrates, were prepared. Kinetic studies revealed an approximately linear increase in both graft polymer concentration and polymer film thickness with the polymerization time, indicating that the chain growth from the functionalized silicon surface was a controlled process with a "living" character. Atomic force microscopy (AFM) images suggested that the surface-initiated ATRP had proceeded uniformly on the Si-VBC surface to give rise to a dense and molecularly flat surface coverage. The "living" chain ends were used as the macroinitiator for the synthesis of diblock copolymer brushes, consisting of the NaStS polymer (P(NaStS)) and the PEGMA polymer (P(PEGMA)) blocks. © 2005 American Chemical Society.|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 15, 2018
WEB OF SCIENCETM
checked on Jan 29, 2018
checked on Feb 12, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.