Darstellung und Derivatisierung von linearem Polyvinylamin zur selektiven Komplexbildung in homogener Phase
✍ Scribed by Bayer, Ernst ;Geckeler, Kurt ;Weingärtner, Karl
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1980
- Weight
- 425 KB
- Volume
- 181
- Category
- Article
- ISSN
- 0025-116X
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✦ Synopsis
Abstract
Poly(1‐aminoethylene) (polyvinylamine) (4) was prepared by hydrazinolysis of poly(1‐succinimidoethylene) (2) [poly(N‐vinylsuccinimide)]. The water‐soluble polymer 4, with more than 95% of primary amino groups, was used as basic material for the synthesis of macromolecular complex forming reagents. By the reaction of poly(1‐ammonioethylene chloride) (3) [poly(vinylamine hydrochloride)] with 2‐pyridinecarbaldehyde a complex forming polymer 5 was obtained, which is highly selective for iron. Poly{1‐[bis(carboxymethyl)amino]ethylene} (6) from 4 and chloroacetic acid is a reagent for copper, whereas poly[1‐(3‐methylthioureido)‐ethylene] (7) from 4 and N‐methylisothiocyanate shows a good selectivity for mercury. The ultrafiltration technique allows a continuous procedure for the separation of the polymer complexes. The formation and stability of the prepared complexes of 4and its derivatives 5, 6, and 7 in homogeneous phase are investigated and discussed.