Synthesis and characterization of novel polyurethanes containing tricyanocyclopropane ring for piezoelectric applications
โ Scribed by Ju-Yeon Lee; Eun-Ju Park
- Publisher
- Springer
- Year
- 2001
- Tongue
- English
- Weight
- 71 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0170-0839
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## Abstract **Summary:** 1โ(2โฒ,2โฒ,3โฒ,3โฒโTetracyanocyclopropyl)โ3,4โdiโ2โฒโhydroxyethoxybenzene (4) was prepared by the reaction of bromomalononitrile with 3,4โdiโ(2โฒโhydroxyethoxy)benzylidenemalononitrile (3). The dipole moment of diol 4, calculated by the ASEDโMO method, was 4.01 D. Diol 4 was cond
## Abstract The use of amino acid based polymers for biomaterial applications enhance biocompatibility and ensure biodegradability. Two polyurethanes based on Lโtyrosine based diphenolic dipeptide, desaminotyrosyl tyrosine hexyl ester as chain extender are synthesized with polyethylene glycol (PEG)