Biodegradable polymers triglycerides

The internal hydrophobic core of lipospheres is composed of fats and biodegradable polymers, mainly triglycerides and lactide-based polymers, whereas the surface activity of liposphere particles is provided by the surrounding lecithin layer, composed of phospholipid molecules. 

All liposphere formulations prepared remained stable during the 3-month period of the study, and no phase separation or appearance of aggregates were observed. The difference between polymeric lipospheres and the standard liposphere formulations is the composition of the internal core of the particles. Standard lipospheres, such as those previously described, consist of a solid hydrophobic fat core composed of neutral fats like tristearin, whereas, in the polymeric lipospheres, biodegradable polymers such as polylactide or polycaprolactone were substituted for the triglycerides. Both types of lipospheres are thought to be stabilized by one layer of phospholipid molecules embedded in their surface. 

Many types of biodegradable polymers are available to biodegrade in a variety of environments, including soil, air, or compost. Biodegradable polymers are primarily made from com in the United States, but can be made from sugarcane, wheat, cellulose, collagen, casein, soy, or triglycerides. 

Colonized products paints and coatings (triglycerides highly crosslinked and with nondegradable linkages are not biodegradable) Shogren, R L Petrovlc, Z Liu, Z Erhan, S Z, J. Polym. Environ. 12, 3,173-78, 2004. 

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