Title |
Basic surface-active properties in the homologous series of β-alkyl (C12H25/C18H37) polyethyleneoxy (n = 0-20) propionamides
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Published in |
BMC Chemistry, February 2013
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DOI | 10.1186/1752-153x-7-31 |
Pubmed ID | |
Authors |
Adrian Riviş, Gabriel Bujanca, Teodor Traşcă |
Abstract |
Heterogeneous β-Alkyl (C12H25/C18H37) polyethyleneoxy (n = 0-20) propionamides [R(EO)nPD] represent new "hybrid" nonionic-ionic colloidal structures in the field of surface-active products (technical products). These "niche" compounds have three structural and compositional characteristics that also define their basic colloidal properties: mixture of R and PEO chain homologues; specific conformations due to the PEO chains; and the presence of side products from the addition of higher alcohols, polyethyleneglycols and traces of water to acrylamide. The proposed major objective of this paper is the basic informative colloidal characterization (functional classification, HLB balance, surface tension, critical micelle concentration) in direct correlation with the structural changes in the homologous series of LM(EO)nPD and CS(EO)nPD. The structures were obtained either indirectly by cyanoethylation followed by partial acid hydrolysis of the corresponding β-propionitriles, or directly by the nucleophilic addition under alkaline catalysis of linear higher alcohols C12H25/C14H29 (7/3) (LM) and C16H33/C18H37 (CS) as such and heterogeneous polyethoxylated (n = 3-20) to acrylamide monomer, through an adapted classic reaction scheme. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 4 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Ph. D. Student | 1 | 25% |
Researcher | 1 | 25% |
Student > Doctoral Student | 1 | 25% |
Unknown | 1 | 25% |
Readers by discipline | Count | As % |
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Agricultural and Biological Sciences | 1 | 25% |
Economics, Econometrics and Finance | 1 | 25% |
Unknown | 2 | 50% |