Polycaprolactone high density

Dibromopropyl methacrylate Dimethyl sulfoxide Glass Glycidyl ether 100 Graphite Hexamethylenediamine Piperazine dihydrochloride Polycaprolactone Polyethylene, high-density Polyethylene, low-density... 

As compared to metallic compounds used as shape memory materials, shape memory polymers have low density, high shape recoverability, easy processability, and low cost. Since the discovery by Mitsubishi in 1988, polyurethane SMPs have attracted a great deal of attention due to their unique properties, such as a wide range of shape recovery temperatures (— 30°C to 70°C) and excellent biocompatibility, besides the usual advantages of plastics. A series of shape memory polyurethanes (SPMUs), prepared from polycaprolactone diols (PCL), 1,4-butanediol (BDO) (chain extender), and 4,4 -diphenylmethane diisocyanate (MDI) or toluene diisocyanate (TDI) have recently been introduced [200—202]. 

Extruded starch foams are generally water-soluble, and their properties are sensitive to moisture content Greatest expansion and lowest densities are generally achieved through the use of modified high-amylase starches. Various synthetic polymers, such as poly(vinyl alcohol) or polycaprolactone, have been blended with unmodified starches to produce foams with lower densities and increased water resistance. 

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