Different Techniques Used for Plasma Modification of Polyolefin Surfaces

Abstract

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Silanization of Plasma-Activated Hexamethyldisiloxane-Based Plasma Polymers for Substrate-Independent Deposition of Coatings with Controlled Surface Chemistry

“…The approach is based on the substrate-independent deposition of a silanol-containing layer which can subsequently react with a silane coupling agent to introduce a particular functional group. Even though silane coupling agents are widely used for modification of inorganic substrates like silica and glass, they have not yet been combined with plasma-polymerization derived coatings that can be applied to both inorganic and organic substrates. − In this regard, it is important that different precursors have already been used to synthesize glass-like plasma polymer coatings that typically contain a significant amount of silanol groups. , Reported examples of such precursors are tetraethoxysilane (TEOS), tetramethoxysilane (TMOS), and hexamethyldisiloxane (HMDSO) of which the latter is most often used because of its high vapor pressure and nontoxicity. , Typically, HMDSO needs to be mixed with O 2 (or air) to form glass-like coatings, while the plasma polymerization of pure HMDSO (with or without carrier gas) results in polydimethylsiloxane (PDMS)-like coatings . The glass-like coatings can be prone to undesirable cracking because of increasing internal stresses .…”

“…22,23 Reported examples of such precursors are tetraethoxysilane (TEOS), tetramethoxysilane (TMOS), and hexamethyldisiloxane (HMDSO) of which the latter is most often used because of its high vapor pressure and nontoxicity. 23,24 Typically, HMDSO needs to be mixed with O 2 (or air) to form glass-like coatings, while the plasma polymerization of pure HMDSO (with or without carrier gas) results in polydimethylsiloxane (PDMS)-like coatings. 23 The glass-like coatings can be prone to undesirable cracking because of increasing internal stresses.…”

From Basics to Frontiers: A Comprehensive Review of Plasma-Modified and Plasma-Synthesized Polymer Films

“…This improvement is attributed to chain crosslinking stimulated by UV radiation [131] . On shorter wavelengths, VUV radiation can penetrate polymer films over several tens of nm (Figure 3), hence triggering stronger crosslinking, as evidenced by Narimisa et al on polyolefins [140] .…”

Polyethylene Film Surface Modification via Benzoic Acid Grafting

“…Nevertheless, despite its excellent bulk properties, the inert, non-polar, and hydrophobic PE surface imposes limitations on its applications. Properties such as printability, paintability, and adhesion, which are determined by the surface affinity with polar substances, require enhancement [1,2].…”