July 1, 1988Langmuir
Wetting of functionalized polyethylene film having ionizable organic acids and bases at the polymer-water interface: relations between functional group polarity, extent of ionization, and contact angle with water
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Discussion
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Implication
Experimental study demonstrates the influence of surface ionization on water contact angles in polyethylene films, highlighting molecular controls over polymer wetting.
Key Points
- To determine how chemical functionalization, group polarity, and the extent of ionization of surface organic acids and bases influence the wetting and contact angles of polyethylene films.
- Synthesized and prepared polyethylene films functionalized with ionizable acidic and basic organic surface groups.
- Measured aqueous contact angles at the polymer-water interface across varying extents of surface functional group ionization.
- Surface contact angles decrease systematically as the polarity and extent of ionization of the interfacial acidic or basic groups increase.
- Ionization of interfacial functional groups directly enhances surface wettability by stabilizing the polymer-water interface.
Cite This Study
Holmes‐Farley et al. (1988) studied this question.