Dioctadecyldimethylammonium methacrylate

Fukuda H, Diem T, Stefely J, Kezdy FJ, Regen SL. Polymer-encased vesicles derived from dioctadecyldimethylammonium methacrylate. J Am Chem Soc 1986 108 2321-2327. 

Polymeric phospholipids based on dioctadecyldimethylammonium methacrylate were formed by photopolymerization to give polymer-encased vesicles which retained phase behavior. The polymerized vesicles were more stable than non-polymerized vesicles, and permeability experiments showed that vesicles polymerized above the phase transition temperature have lower permeability than the nonpolymerized ones [447-449]. Kono et al. [450,451] employed a polypeptide based on lysine, 2 aminoisobutyric acid and leucine as the sensitive polymer. In the latter reference the polypeptide adhered to the vesicular lipid bilayer membrane at high pH by assuming an amphiphilic helical conformation, while at low pH the structure was disturbed resulting in release of the encapsulated substances. 

Following route 3, S. L. Regen 111 > built polymer-encased vesicles by the photo-polymerization of DODAM (dioctadecyldimethylammonium methacrylate)... 

The improvement in the thermal performance of the polymers after the incorporation of filler was demonstrated in Figure 1.9 for poly(methyl methacrylate). Figure 1.14 further shows the thermal behavior of polypropylene nanocomposites containing different volume fractions of montmorillonite modified with dioctadecyldimethylammonium. Curve 1 represents the thermal degradation of pure polymer. Curve 2 represents the composite with 1 vol% clay. The thermal stability of the polymer was significantly enhanced. Further... 

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See also in sourсe #XX -- [ ]

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