I need to produce a polymer bush on a glass slide, for that I need to bind this organic RAFT polymer to a silicated surface rich on hydroxyl groups.
-[Si(-OH)]n-
My polymer has an hydroxyl group in one of the end, and a thiol in the other:
(HO-)polymer(-SH).
How do I bind one of the ends to the glass surface so they produce a polymer bush?
Best regards.
glass surfaces can be functionalized with trimethoxy or triethoxy silanes. If you have a SH end-group you could functionalize the surface with an ene and do thiol-ene coupling. Of course you can also do grafting-from using a silane with a RAFT agent, there are multiple examples in the literature for this.
Sehr gut, danke Mathias.
I am out of my field, as I am not a chemist.
Could you add some bibliography or protocol I may use?
I use a trithiocarboate as the RAFT agent.
For surface initiated RAFT:
http://pubs.acs.org/doi/abs/10.1021/ac0521091
http://pubs.acs.org/doi/abs/10.1021/ma900604v
A recent review about click reactions on surfaces:
http://onlinelibrary.wiley.com/doi/10.1002/admi.201500135/abstract
glass surfaces can be functionalized with trimethoxy or triethoxy silanes.
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