Basically, I would like to know how to treat or coat on the uncoated bare TiO2 (Ti-OH rich) surface with polymer which has anchoring groups in the polymer structure like trimethoxygroups. What is the basic surface coating method on uncoated TiO2?
You could try plasma treatment on the surface of uncoated TiO2. The duration and power of plasma should be optimised.
I guess you think about silanes when you write "trimethoxy groups", if it is that there is a lot of literature about tethering silane linked polymers to such surfaces.
people have also done growing of polymers from surfaces modified with silanes.
but as said by Xuhua Wang you'll might need some pretreatments before doing so.
https://scholar.google.fr/scholar?hl=fr&as_sdt=0%2C5&as_vis=1&q=surface+treatment+silane+tio2+surface&btnG=
I hope it helps
Article Hydrosilane-Modified Poly(2-Hydroxyethyl Methacrylate) Brush...
an interesting paper on this subject
Seunghyun Jang
Key is the end or proposed application of your material - which is?
My simple route would be to agitate the TiO2 with a dilute polymer solution and take off the solvent with a rotary evaporator. Now the type of titania (size, chemistry, surface) would dictate the nature of the solvent. Taking off the solvent in a rotary evaporator may have adverse agglomeration/aggregation effects so it may be possible to use the solution as is/directly.
Alan F Rawle
Thanks so much for the information.
Actually, final application based on the TiO2 that have polymer end-groups onto the surface of particle could be a fillers in the formulation of sunscreen cosmetics. I just want to know general and widely to be using immobilization method btw trimethoxysilane anchoring agent and Ti-OH group of TiO2 surface.
Is it necessary or effective to do the milling process of TiO2 particles before surface treatment with polymer?
Xuhua Wang Zakaria Salmi
Thanks so much for your useful answer. beside plasma treatment on the surface of untreated TiO2, is ball milling process effective for the surface treatment before surface treatment with polymer?
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