Moni, M.
, Emma Letourneau, E.
, Qureshi, S.
, Cabrello, C.
, Killgore, J.
and Ding, Y.
(2026),
Adhesion Behaviors of Polydimethylsiloxane with Porous Membranes, ACS Macro Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=962266 (Accessed September 24, 2026)
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Adhesion Behaviors of Polydimethylsiloxane with Porous Membranes
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Author(s)
Meril Moni, Emma Emma Letourneau, Sundus Qureshi, Christina Cabrello, , Yifu Ding
Abstract
Multilayer configuration is used in many membrane technologies. Among them, Polydimethylsiloxane (PDMS)films are often laminated atop porous supports to either serve as an active layer for pervaporation or as a gutter layer for gas separation. However, the interfacial properties such as the adhesion between PDMS and porous support remains largely unknown. Here, we examine the adhesion between PDMS and symmetric Polyvinylidene fluoride (PVDF)membranes as well as asymmetric Polyethersulfone (PES) membranes. Compared with bulk PVDF and PES films, the PDMS-infiltrated membranes display 3x to 25x higher interfacial fracture toughness (Gc), attributed to the mechanical interlocking. The Gc value increases with increase of pore size and porosity of the membranes. Analysis using the Gent model suggests that the fracture depth of the infiltrated PDMS was approximately 100 nm to 200 nm for membranes with pore sizes below 100 nm, and 1 µm to 2 µm for membranes with pore sizes above 200 nm.Citation
ACS Macro Letters
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Created August 10, 2026, Updated September 22, 2026