Surfactant and Plasticizer Segregation in Thin Poly(vinyl
The behavior of each surfactant in PVA was reversed when the plasticizer (glycerol) was also incorporated into the films. With increasing plasticizer content, the surface activity of d25-C12E5 systematically decreased, but remarkably, when glycerol and CTAB were present in PVA, the surface and interfacial activities of CTAB increased
Surfactant and Plasticizer Segregation in Thin Poly(vinyl
Surfactant and Plasticizer Segregation in Thin Poly (vinyl alcohol) Films Langmuir. 2016 Jan 26;32 (3):864-72. doi: 10.1021/acs.langmuir.5b03758. Epub 2016 Jan 14. Authors Arron Briddick 1 , Peixun Li 2 , Arwel Hughes 2 , Florence Courchay 3 , Alberto Martinez 3 , Richard L Thompson 1 Affiliations
Durham Research Online
Surfactant and Plasticiser Segregation in Thin Polyvinyl Alcohol Films Arron Briddick1, Peixun Li2, Arwel Hughes2, Florence Courchay3, Alberto Martinez3 and Richard L. Thompson1,* 1 Department of Chemistry, Durham University, Science Site, Durham DH1 3LE, U.K. 2STFC ISIS Facility, Rutherford Appleton Laboratories, Chilton, Didcot, OX11 0QX, U.K.
Surfactant and Plasticizer Segregation in Thin Poly(vinyl
In separate binary films with PVA, both d-glycerol and CTAB were evenly distributed, whereas d25-C12E5 showed clear evidence for surface and interfacial segregation. The behavior of each surfactant in PVA was reversed when the plasticizer (glycerol) was also incorporated into the films.
Surfactant and Plasticiser Segregation in Thin Polyvinyl
Studies by Briddick et al. [31] in polyvinyl alcohol films showed surface layers of C 12 E 5 present with a thickness that is comparable to the thicknesses reported in Figure 1, suggesting that
- Do surfactants and plasticizers segregate surface and interfacial segregation in PVA films?
- We have explored the surface and interfacial segregation behaviors of two surfactants and one plasticizer in PVA films by a variety of ion beam analysis techniques and neutron reflectometry, which allow the surface excesses of individual components to be isolated from these mixtures.
- How does glycerol plasticizer affect surface segregation of anionic surfactant?
- Surface segregation of an anionic surfactant (SDS) in PVA leads to wetting layers of surfactant in spin-cast films. The presence of glycerol plasticizer in these films significantly increases the surface excess and enables the formation of smectic layers of alternating glycerol and surfactant on the PVA surface.
- Does polyvinyl alcohol matrices have surfactant segregation?
- ... Studies by Briddick et al. in polyvinyl alcohol films showed surface layers of C 12 E 5 present with a thickness that is comparable to the thicknesses reported in Figure 1, suggesting that the initial surfactant segregation is similar in both PVA and cis-PI matrices.
- Are surfactants enriched at the buried interface of PVA films?
- Our discussion has so far focused on the segregation of surfactants at the exposed surfaces of PVA films in the presence and absence of plasticizer, but it is noticeable that, in many cases, the surfactant species was also found to be enriched at the buried interface between the film and the silicon oxide surface of the silicon wafer substrate.
- Does sodium dodecyl sulfate influence surfactant distribution in poly(vinyl alcohol) films?
- The blooming of sodium dodecyl sulfate (SDS) and the influence of plasticizer (glycerol) on the surfactant distribution in poly (vinyl alcohol) (PVA) films have been explored by neutron reflectometr...
- What are surface and interfacial activities of surfactants in PVA films?
- Surface and interfacial activities of surfactants in PVA films are controlled by their surface energies and their compatibility with PVA and glycerol plasticizer. Poly (vinyl alcohol) (PVA) is a semicrystalline synthetic polymer with excellent film-forming ability and optical transparency.
