Synthesis of poly[isobutyl (2S,3R)-3-benzyloxyaspartate]
✍ Scribed by María de Gracia García-Martín; María Violante de Paz; Juan Antonio Galbis
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 466 KB
- Volume
- 198
- Category
- Article
- ISSN
- 1022-1352
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✦ Synopsis
Abstract
A chiral poly(3‐substituted isobutyl D‐aspartate) 12 was synthesized by polymerization of the chiral β‐lactam 11 derived from D‐glyceraldehyde. The new polyamide was characterized by elemental analyses, and infrared, ^1^H‐ and ^13^C nuclear magnetic resonance spectroscopies. The molecular weight was estimated as 543 000 and 230 000 on the basis of viscosimetric measurements and gel‐permeation chromatography, respectively. Polyamide 12 is soluble in a variety of organic solvents including chloroform.
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