Polysuccinimide

Polysuccinimide
Names
	IUPAC name Poly(2,5-dioxopyrrolidine-1,3-diyl)
Identifiers
CAS Number	31586-29-5 ;
3D model (JSmol)	Interactive image;
	SMILES C1CC(=O)N(C1=O);
Properties
Chemical formula	(C4H3NO2)n
Molar mass	97.07 g·mole−1
Appearance	solid
Solubility in water	* insoluble in water soluble in Dimethylformamid, Dimethylacetamid, Dimethylsulfoxid, N-Methylpyrrolidone, und Mesitylen+Sulfolan; 30 to 35 at 20 °C in g·100 ml−1 in Triethylenglycol;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Polysuccinimide (PSI), also known as polyanhydroaspartic acid or polyaspartimide, is formed during the thermal polycondensation of aspartic acid and is the simplest polyimide. Polysuccinimide is insoluble in water, but soluble in some aprotic dipolar solvents. Its reactive nature makes polysuccinimide a versatile starting material for functional polymers made from renewable resources.

The name is derived from the salt of succinic acid, the structurally related succinate.

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