## Abstract Several kinds of chloromethyl polysulfones (CMPSF) with different chlorinity and reactive groups were synthesized by Friedel‐Crafts reaction, which could be utilized as reactively matrix membrane materials. The CMPSF hollow matrix membranes were prepared with phase inversion by utilizat
Preparation, properties and application of modified fibers with piperazine rings
✍ Scribed by Michal Krištofič; Anton Marcinčin; Eberhard Borsig
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 128 KB
- Volume
- 10
- Category
- Article
- ISSN
- 1042-7147
No coin nor oath required. For personal study only.
✦ Synopsis
The paper is devoted to the preparation of copolyamides from e-caprolactam with 6.1±24.5 wt% of the nylon salt of adipic acid and 1-(2-aminoethyl)piperazine. Molecular characteristics and thermal properties of the prepared copolyamides have been studied.
Fibers from copolyamides and blend fibers containing polyamide 6 and copolyamides have been prepared and their properties have been evaluated. Modified fibers have better electrical properties, higher sorption of water vapour, lower orientation factor and tensile strength and practically the same elongation at break in comparison with non modified polyamide 6 fibers.
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