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US 2008/0166390 A1Published application
Biodegradable polyphosphazenes containing pyrrolidone side groups
OwnerAlexander K. Andrianov, Alexander Marininventors
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Abstract
Biodegradable polyphosphazene polymers containing pyrrolidone side groups, and the biomedical use of such polyphosphazene polymers are disclosed.
Claims20
A polyphosphazene polymer comprising the following units:
- wherein at least one R has the formula:
- wherein Z is oxyalkyl;
- oxyarylalkyl;
- oxyaryl;
- aminoalkyl;
- aminoarylalkyl;
- aminoaryl;
- thioalkyl;
- -thioarylalkyl;
- thioaryl;
- aryl;
- arylalkyl;
- aryl.
10 more elements
A Poly{di[2-(2-oxo-1-pyrrolidinyl)ethoxy]phosphazene} as depicted by Formula I:
- wherein each of a, b, c, d, e, and f are NMR data characterizing said Poly {di[2-(2-oxo-1-pyrrolidinyl)ethoxy]phosphazene} as follows:
- NMR, ppm
- 1H
- 2.02 (d);
- 2.38 (e);
- 3.49 (b);
- 3.51 (c);
- 4.03 (a)
- 13C
- 178.11 (f);
- 63.65 (a);
- 48.61 (b);
- 43.11 (c);
- 30.79 (e);
- 17.78 (d)
- 31P
- −7.4
14 more elements
Dependencies are inferred from the claim text.