Sulfonation of Polyamides

Jacob Vaya; Albert Zilkha

doi:10.1002/ijch.197400077

Sulfonation of Polyamides

Jacob Vaya^*, Albert Zilkha

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

The sulfonation of polyamides (Nylons‐3,6,11 and 6,6) was investigated using fuming sulfuric acid and solutions of SO₃ in CCl₄. The sulfonated polymers were soluble in water and insoluble in ethanol. Acid hydrolysis of the polymers and quantitative determination of the amino acids in the hydrolysate showed the presence of α‐sulfo amino acids. This showed that sulfonation in the polymer occurred in the active α‐position of the amide group.

Original language	English
Pages (from-to)	873-878
Number of pages	6
Journal	Israel Journal of Chemistry
Volume	12
Issue number	4
DOIs	https://doi.org/10.1002/ijch.197400077
State	Published - 1974

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10.1002/ijch.197400077

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title = "Sulfonation of Polyamides",

abstract = "The sulfonation of polyamides (Nylons‐3,6,11 and 6,6) was investigated using fuming sulfuric acid and solutions of SO3 in CCl4. The sulfonated polymers were soluble in water and insoluble in ethanol. Acid hydrolysis of the polymers and quantitative determination of the amino acids in the hydrolysate showed the presence of α‐sulfo amino acids. This showed that sulfonation in the polymer occurred in the active α‐position of the amide group.",

author = "Jacob Vaya and Albert Zilkha",

year = "1974",

doi = "10.1002/ijch.197400077",

language = "אנגלית",

volume = "12",

pages = "873--878",

journal = "Israel Journal of Chemistry",

issn = "0021-2148",

publisher = "Wiley-Blackwell",

number = "4",

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T1 - Sulfonation of Polyamides

AU - Vaya, Jacob

AU - Zilkha, Albert

PY - 1974

Y1 - 1974

N2 - The sulfonation of polyamides (Nylons‐3,6,11 and 6,6) was investigated using fuming sulfuric acid and solutions of SO3 in CCl4. The sulfonated polymers were soluble in water and insoluble in ethanol. Acid hydrolysis of the polymers and quantitative determination of the amino acids in the hydrolysate showed the presence of α‐sulfo amino acids. This showed that sulfonation in the polymer occurred in the active α‐position of the amide group.

AB - The sulfonation of polyamides (Nylons‐3,6,11 and 6,6) was investigated using fuming sulfuric acid and solutions of SO3 in CCl4. The sulfonated polymers were soluble in water and insoluble in ethanol. Acid hydrolysis of the polymers and quantitative determination of the amino acids in the hydrolysate showed the presence of α‐sulfo amino acids. This showed that sulfonation in the polymer occurred in the active α‐position of the amide group.

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U2 - 10.1002/ijch.197400077

DO - 10.1002/ijch.197400077

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AN - SCOPUS:84987260719

SN - 0021-2148

VL - 12

SP - 873

EP - 878

JO - Israel Journal of Chemistry

JF - Israel Journal of Chemistry

IS - 4

ER -

Sulfonation of Polyamides

Abstract

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