Synthesis and performance of 2,3-bis(stearoloxy)-propyltrimethylamine quaternary / Z.-Z. Jiang in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 47, N° 6/2010 (11-12/2010)

[article]  inTENSIDE, SURFACTANTS, DETERGENTS > Vol. 47, N° 6/2010 (11-12/2010) . - p. 408-412 Titre : Synthesis and performance of 2,3-bis(stearoloxy)-propyltrimethylamine quaternary Type de document : texte imprimé Auteurs : Z.-Z. Jiang, Auteur ; Q.-X. Li, Auteur ; T. Geng, Auteur Année de publication : 2010 Article en page(s) : p. 408-412 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adoucissants Assouplissants Surfactants -- Biodégradation Tags : 3-diméthylamino-1,2-propanediol  Esterquat  'Propriété  adoucissante'  Biodégradation  Performance Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : In this study, an attempt has been made to synthesize esterquat by esterification of stearic acid and 3-dimethylamino-1,2-propanediol (DMAPD) followed by quaternization with dimethyl sulfate, resulted in new quaternary useful as biodegradable fabric softener (2,3-bis(stearoloxy)-propyltrimethylamine [DMAPDEQDMS]). The softening property, biodegradation of DMAPDEQDMS were investigated, and compared with distearyl dimethylammonium chloride (D1821) and other ester quaternary. The results showed that DMAPDEQDMS's biodegradation was better than that of D1821, and its softening property was comparable with D1821. It is a new style softener with excellent properties, which can replace D1821. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10302 [article]

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Synthesis and properties evaluation of sodium fatty alcohol polyoxyethylene ether sulfonate / Y. M. Zhang in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 47, N° 1/2010 (01-02/2010)

[article]  inTENSIDE, SURFACTANTS, DETERGENTS > Vol. 47, N° 1/2010 (01-02/2010) . - p. 35-39 Titre : Synthesis and properties evaluation of sodium fatty alcohol polyoxyethylene ether sulfonate Type de document : texte imprimé Auteurs : Y. M. Zhang, Auteur ; J.-P. Niu, Auteur ; Q.-X. Li, Auteur Année de publication : 2010 Article en page(s) : p. 35-39 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Sodium  salts  fatty  alcohol  polyoxyethylene  ether  sulfonate  isethionate  Temperature  tolerance  Salt  Interfacial  tension Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Sodium salts of fatty alcohol polyoxyethylene ether sulfonates with different length of hydrophobic chain (CnE3SO3, n = 14, 16, 18) were synthesized from sodium isethionate, then the structure was verified by IR. The temperature resistance, calcium-tolerant stability and salt tolerance were evaluated by pyrogenetic decomposition, phase separation and middle phase emulsion respectively. In addition the mixture of CnE3SO3 and heavy alkylbenzene sulfonate (HABS) was studied. The results showed that : (1) CnE3SO3 was very stable at 150°C especially in neutral, weak acid and weak alkaline conditions ; (2) CnE3SO3 performed a good salt tolerance and have a rank of C18E3SO3 > C16 E3SO3 > C14E3SO3 ; (3) the calcium-tolerant stability of CnE3SO3 reached 8700 mg/L, 9500 mg/L and 10000 mg/L respectively ; (4) CnE3SO3 was very good for improving the salt tolerance of mixture of CnE3SO3 and HABS. C18E3SO3 was the best in mixtures of Daqing crude oil/water containing C18E3SO3 and HABS in a ratio of omega C18E3SO3):omega(HABS) = 3:7 and showed the strongest synergistic effect. The interfacial tension in the system Daqing crude oil/water reached a minimum in the order of 10–3 mN/m and was always below 10–2 mN/m for cNaCl from 0 to 15000 mg/L. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8068 [article]

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Synthesis, characterization and surface activity of trioctyl hydroxyethyl ammonium chloride / Y.-L. Li in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 48, N° 4/2011 (07-08/2011)

[article]  inTENSIDE, SURFACTANTS, DETERGENTS > Vol. 48, N° 4/2011 (07-08/2011) . - p. 305-307 Titre : Synthesis, characterization and surface activity of trioctyl hydroxyethyl ammonium chloride Type de document : texte imprimé Auteurs : Y.-L. Li, Auteur ; Q.-X. Li, Auteur ; L.-F. Zhi, Auteur ; M.-H. Zhang, Auteur Année de publication : 2011 Article en page(s) : p. 305-307 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation Surfactants -- Synthèse Tags : 'Surfactant  cationique'  'Chlorure  ammonium  trioctyle  hydroxyéthyle'  'Oxyde  éthylène'  'Activité  surface' Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Trioctyl hydroxyethyl ammonium chloride was synthesized from trioctylamine, hydrochloric acid and ethylene oxide by a twostep process. The structure of the quaternary ammonium salt was characterized by FTIR and 1H NMR. The surface tension at the critical micelle concentration was measured to investigate the surface activity of it. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11949 [article]

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