Dear Hripsime,

You might contact these two suppliers

1-Interstate Specialty Products Supplies PDMS Sheets and Membranes

Contacts

Interstate Specialty Products

Abigail Smalley, 800-984-1811

[email protected]

2-Specialty Silicone Products, Inc.

Corporate Technology Park

3 McCrea Hill Road

Ballston Spa, NY 12020

Toll Free: 800-437-1442

Phone: 518-885-8826

Fax: 518-885-4682

Good luck,

Rafik

hello Hripsime,

You can fabricate your own PDMS membrane using PDMS solution by spin coating method.

http://link.springer.com/article/10.1007/s10544-007-9070-6

with regards,

Dear Rafik and Prasoon,

Thank you very much for your kind replies. Much appreciated.

Best regards

Hripsime

One more

Telephone 01376 330033

Fax 01376 339163

Email [email protected]

Shielding Solutions Ltd

410 Avenue West

Skyline 120

Great Notley

Essex

CM77 7AA

Hi,

you can check these companies

 SolSep (Apeldoorn, Netherlands),  Pervatech (Rijssen, Netherlands), Sulzer Chemtech (Neunkirchen, Germany), and Celanese (NC, United States). Membrane Technology and Research, (MTR) (CA, United States)

two more:

Sulzer Chemtech (Switzerland) and PolyAn GmbH (Germany)

Dear all, 

Thank you very much for your kind replies. Much appreciated. 

Hripsime 

PDMS coated on PAN porous support . It's a commercial membrane by Sulzer (DeltaMem) new name.may be also check all Pervaporation companies.

One more:

Greene Rubber Co.

Also Elveflow sells a "PDMS membrane station" for making your own membranes (they claim reproducible thickness, 1µm to 250µm), they also probably have technical insights to offer.