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Synthesis of succinic acid alkyl half - ester derivatives with improved lubricity characteristics / Seung-Yeob Baek in Industrial & engineering chemistry research, Vol. 51 N° 9 (Mars 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 9 (Mars 2012) . - pp. 3564–3568 Titre : Synthesis of succinic acid alkyl half - ester derivatives with improved lubricity characteristics Type de document : texte imprimé Auteurs : Seung-Yeob Baek, Auteur ; Young-Wun Kim, Auteur ; Keunwoo Chung, Auteur Année de publication : 2012 Article en page(s) : pp. 3564–3568 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Succinic  acid  Lubricating  properties Résumé : A series of succinic acid alkyl half-esters were synthesized with higher than 97% yields by a one-step reaction of succinic anhydride with various fatty alcohols. The synthesized esters were soluble in 100N base oil at 1 wt %, and the lubricating properties of the esters in ultralow-sulfur diesel fuel were measured using a high-frequency reciprocating test rig and a four-ball wear machine. Wear scar diameter results showed that lubricity depended on the presence of a carboxylic acid group and that enhancements to lubricity depended strongly on the chain lengths of the alkyl group. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202137r [article] Synthesis of succinic acid alkyl half - ester derivatives with improved lubricity characteristics [texte imprimé] / Seung-Yeob Baek, Auteur ; Young-Wun Kim, Auteur ; Keunwoo Chung, Auteur . - 2012 . - pp. 3564–3568. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 9 (Mars 2012) . - pp. 3564–3568 Mots-clés : Succinic  acid  Lubricating  properties Résumé : A series of succinic acid alkyl half-esters were synthesized with higher than 97% yields by a one-step reaction of succinic anhydride with various fatty alcohols. The synthesized esters were soluble in 100N base oil at 1 wt %, and the lubricating properties of the esters in ultralow-sulfur diesel fuel were measured using a high-frequency reciprocating test rig and a four-ball wear machine. Wear scar diameter results showed that lubricity depended on the presence of a carboxylic acid group and that enhancements to lubricity depended strongly on the chain lengths of the alkyl group. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202137r