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Polyisobutylene surface tension

Figure 2.23. The reduced surface tension as a function of the reduced temperature for a number of polymers (A, poly(vinyl acetate) , polystyrene , polyisobutylene A, poly(dimethyl siloxane) , linear polyethylene o, branched polyethylene), compared with the prediction of a gradient theory using the Poser and Sanchez lattice fluid model and a square gradient term modified to account for loss of polymer configurational entropy near a surface (full line). After Sanchez (1992). Figure 2.23. The reduced surface tension as a function of the reduced temperature for a number of polymers (A, poly(vinyl acetate) , polystyrene , polyisobutylene A, poly(dimethyl siloxane) , linear polyethylene o, branched polyethylene), compared with the prediction of a gradient theory using the Poser and Sanchez lattice fluid model and a square gradient term modified to account for loss of polymer configurational entropy near a surface (full line). After Sanchez (1992).
The critical surface tension of a PSA cannot be determined directly, for when the test droplets of low polarity liquids are dissolved in the adhesive the contact angle is not defined. Therefore, this value was derived from those of chemically similar polymers, resulting in 33 mN/m for polyisobutylene and 35-36 mN/m for standard acrylic and rubber-rosin PSAs. [Pg.99]

Wu S (1969) Surface and interfacial tensions of polymer melts I. Polyethylene, polyisobutylene, and polyvinyl acetate. J Colloid Interface Sci 31 153-161 Sakai T (1965) Surface tension of polyethylene melt. Polymer 6 659-661 Hata T (1968) Hyomen (Surface, Japan) 6 281... [Pg.205]

Schonhom H, Ryan FW, Sharpe LH (1966) Surface tension of a molten polychlorotrifluor-oethylene. J Polym Sci A-2 4 538-542 133. Edwards H (1968) Surface tensions of liquid polyisobutylenes. J Appl Polym Sci 12 2213 Wilhelmy L Ueber die Abhangigkeit der Capillaritats-Constanten des Alkohols von Sub-stanz und Gestalt des benetzten festen Korpers. Ann Phys 195 177-217 Dettre RH, Johnson RE Jr (1966) Surface properties of polymers I. The surface tensions of some molten polyethylenes. J Colloid Interface Sci 21 367-377... [Pg.205]

Edwards H (1968) Surface tensions of liquid polyisobutylenes. J Appl Polym Sci 12 2213... [Pg.263]

Fig. 8. Reduced surface tension versus reduced temperature of polymers. Solid line is Poser Sanchez theory with ic = 0.55 O branched polyethylene linear polyethylene polyisobutylene polystyrene A poly(vinylacetate) A poly(dimethyl siloxane). From Ref. 21. Fig. 8. Reduced surface tension versus reduced temperature of polymers. Solid line is Poser Sanchez theory with ic = 0.55 O branched polyethylene linear polyethylene polyisobutylene polystyrene A poly(vinylacetate) A poly(dimethyl siloxane). From Ref. 21.
Figure 4, Comparison of calculated and experimental surface tensions (solid circles) for polyisobutylene. The solid line is the present theory. Equation (6), with "k = 0.55. The dotted line is Equation (10), the dot-dashed line is Equation (11), and the dashed line is Equation (12). Experimental values were taken from Reference 16. Figure 4, Comparison of calculated and experimental surface tensions (solid circles) for polyisobutylene. The solid line is the present theory. Equation (6), with "k = 0.55. The dotted line is Equation (10), the dot-dashed line is Equation (11), and the dashed line is Equation (12). Experimental values were taken from Reference 16.
See other pages where Polyisobutylene surface tension is mentioned: [Pg.32]    [Pg.538]    [Pg.1351]    [Pg.197]    [Pg.32]    [Pg.538]    [Pg.267]    [Pg.280]    [Pg.190]    [Pg.460]    [Pg.179]    [Pg.828]   
See also in sourсe #XX -- [ Pg.39 ]

See also in sourсe #XX -- [ Pg.180 ]



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