Hi Paul,

You can use simple vapor deposition method to change wettability of your
polycarbonate. We usually getting 112-115 deg DI water contact angle on
polycarbonate samples (depends on initial surface roughness). In-situ (vapor
deposited) adhesion layer should be used in order to attach self-assembled
hydrophobic monolayer to polymer materials, though total thickness of the
dual layer can be kept below 100 A and the entire process is automated.

Regards,

Boris Kobrin, Ph.D.
Sr. Director, Marketing & Business Development
Applied Microstructures, Inc.
Office: 408 907-2885 x2805
Mobile: 408 806-6859
boris_kobrin@appliedmst.com


Message: 5
Date: Wed,  9 Apr 2008 10:53:03 +0100
From: Paul Monaghan 
Subject: [mems-talk] Hydrophobic treatments/coatings for Polycarbonate
To: General MEMS discussion 
Message-ID: <1207734783.47fc91ffc2b55@dlana.elec.gla.ac.uk>
Content-Type: text/plain; charset=ISO-8859-1

Hi,

Is there anyone that could point me in the direction of some simple lab
methods for changing the surface wettability of polycarbonate -
coatings/treatments etc.

I would like to make it more hydrophobic than its native state whilst
retaining the polymer's bulk properties. I can plasma oxidize the surface
if that helps?

Best regards,

Paul