Dünnschichtchromatographie der Diearbonsäuren

Knappe, E.; Rohdewald, I.

doi:10.1007/bf00519321

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1967

1970

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Cited by 14 publications

(1 citation statement)

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“…Another polarographic method was published (78) for trimellitic, pyromellitic, tetrachlorophthalic, and chlorendic acids without interference from phthalic, maleic, and fumaric acids. Thin layer chromatography has been applied to the problem of separating mixed acids (80) and polyhydric alcohols (79). Five different developing systems were studied and the work included 30 dicarboxylic and monocarboxylic acids and 17 alcohols.…”

Section: Specific Constituentsmentioning

confidence: 99%

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Swann¹,

Adams²,

Esposito³

1967

Anal. Chem.

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Section: Specific Constituentsmentioning

confidence: 99%

Coatings

Swann¹,

Adams²,

Esposito³

1967

Anal. Chem.

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Analysis of carboxylic acids and esters

1969

Carboxylic Acids and Esters (1969)

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Über die Photooxidation von Polyäthylenglykolterephthalat‐Fasern

Valk

Kehren

Daamen

1970

Angew. Makromol. Chem.

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ZUSAMMENFASSUNG :Der photooxidative Abbau von Polyathylenglykolterephthalat-Fasern erfolgt radikalisch uber Peroxygenierungsreaktionen. Die Glykolkomponente wird in 1 -und 2-Stellung oxidiert, zudem entsteht noch Acetaldehyd. Als Oxidationsprodukte der Terephthalsliure wurden Mono-und 2,5-Dihydroxyterephthal~&ure isoliert, die auch fur die Fluoreszenz in belichtetem Material verantwortlich sind. SUMMARY:The photooxidative degradation of poly(ethyleneglyco1 terephthalate) fibres is initiated by the formation of free radicals and peroxidation reactions. These produce partial and mutual oxidation products from the glycol component of the polymer in addition to acetaldehyde. During this process the terephthalate residues undergo hydroxylation to form mono-and 2.5-dihydroxyterephthalic acid. Such residues cause a special fluorescence characteristic for light damaged polyester fibres.

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Dünnschichtchromatographie der Diearbonsäuren

Cited by 14 publications

References 9 publications

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Analysis of carboxylic acids and esters

Über die Photooxidation von Polyäthylenglykolterephthalat‐Fasern

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