Synperonic

The poloxamers manufactured by BASF (Cheadle, UK) are known as Pluronic PE block copolymers those manufactured by ICl (Cleveland, UK) as Synperonic PE nonionic surfactants. 

Breakage of glassware allowed 92% sulfuric acid into a heating bath containing hot Synperonic NX (nearly anhydrous ethoxylated nonylphenol, a liquid surfactant). Hydrolysis of the latter lowered the flashpoint and the bath ignited (possibly from formation of dioxane, flash point 12°C). 

Synergist, 72 33 Synergistic toxic effects, 25 214 Syngas plants, suppliers of, 73 789 Syngenite, 5 785t Synperonic... 

Miyazaki, S., et al. 1995. Thermally gelling poloxamine Synperonic T908 solution as a vehicle for rectal drug delivery. Biol Pharm Bull 18 1151. 

Uniqema Synperonic Surfactants, Resin Emulsification for Waterborne Coating and Adhesives, Uniqema, Wilmington, DE, 1999. 

Fig. 15. Image of the W/O/W emulsions obtained for the system. Admul wol 1403-Synperonic PE/F 68-dodecane. =65%. The emulsions were diluted with water+glucose to facilitate the observation, a y=1000 s 1 and b y=14200 s 1...

HBeAg reagent, positive genetically engineered HBe antigen, stabilized with bovine serum albumin and Synperonic, lyophilised, preservative phenol (max. 1 g/L)... 

Microscopic foam films have been used to study the steric interaction between two liquid/gas interfaces [130]. Two ABA triblock copolymers of the Synperonic PE series were employed P85 and F108. These commercial non-ionic surfactant were used as obtained from ICI Surfactants, Witton, UK. Blocks A are hydrophilic polyethylene oxide (PEO) chains, while block B is a hydrophobic polypropylene oxide (PPO) chain. The molecular masses and average EO contents are known from the manufacturer and yield approximate chemical formulae (Table 3.3). Data about the surface tension of electrolyte-free aqueous copolymer solutions can be seen in Fig. 3.31 [130]. It was additionally checked that NaCl (up to 510 2 mol dm 3) had no influence on these values. 

Treatments. Small fabric samples were removed very carefully from the tapestry and transferred into glass vessels to which treatment liquids were added in sufficient amount to assure complete immersion. The samples remained for 1 h in these liquids. Distilled water and distilled water containing 1 g/L of Synperonic N, an ethoxylated nonylphenol, nonionic surfactant were used for aqueous treatments. Commercial grade tetrachloroethylene was selected for the nonaqueous treatments. All treatments were made at room temperature. After the samples were removed from the liquids, they were allowed to dry in open air at 21 °C and 65% rh. 

Lutrol Monolan Pluronic poloxalkol polyethylene-propylene glycol copolymer polyoxyethylene-polyoxypropylene copolymer Supronic Synperonic. 

CH2-CH-OH) -(CH2-CH(OCOCH3)-OH)y-(CH2-CH-OH) -. Block copolymers of ethylene oxide-propylene oxide (ABA block of PEO-PPO-PEO), Pluronics (BASF), Synperonic PE (ICI), H-(0-CH2-CH2) -(CH2-CH (CH3)-0) ,-(CH2-CH2-0) -H. Graft copolymers, for example a poly(methyhnethacrylate) (PMMA) backbone (with some polymethacryhc add) with grafted PEO chains (Atlox4913, Hypermer CG6 ICI). 

Model suspoemulsions of polystyrene latex (mean volume diameter 1.84 pm) were prepared using the surfactant-free method, and then stabilised with Synperonic PE P94 (an ABA block of PEO-PPO-PEO with 47 PPO units and 42 PEO units) and isoparaffinic O/W emulsion (stabilised with Synperonic PE L92 with 47 PPO units and 16 PEO units). 

Competitive adsorption may be reduced by using the same surfactant for dispersing the solid and emulsifying the oil. This was demonstrated above by using Synperonic NPE 1800 however, as this molecule shows some reversible adsorption, the interaction between the particles and droplets is not completely prevented. 

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