| 000 | 03137nlm1a2200409 4500 | ||
|---|---|---|---|
| 001 | 660443 | ||
| 005 | 20231030041709.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\29874 | ||
| 090 | _a660443 | ||
| 100 | _a20190702a2019 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aThe Effect of Duration of Amidation of Fatty Acids with Diethanolamine on the Surfactant Properties _fV. A. Yanovsky [et al.] |
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| 203 |
_aText _celectronic |
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| 300 | _aTitle screen | ||
| 330 | _aThe effects of the duration of direct amidation of fatty acids (FA) with diethanolamine on the composition of the products obtained, their surface-active properties, and ability to stabilize water-in-oil emulsions are studied using the example of tall oil distillate. A certain range of synthesis time that corresponds to the maximum content of diethanolamides in the reaction products, and, as a consequence, the highest surface-active and emulsifying properties of the products is shown to exist. An increase in the synthesis duration time leads to a deterioration of these properties due to accumulation of the products of secondary reactions. A new mechanism of the amidation process that includes secondary transformations of diethanolamine and its condensation products with FA into 1,4-bis(2-hydroxyethyl)piperazine derivatives is proposed. The structures of by-products are confirmed using high-performance liquid chromatography-mass spectrometry (HPLC–MS), infrared (IR), and nuclear magnetic resonance (NMR) spectroscopy methods. It is concluded that the acid value of the product as well as the amount of water released during the synthesis cannot serve as a reliable criterion for completion of the process. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 | _tJournal of Surfactants and Detergents | ||
| 463 |
_tVol. 22, iss. 3 _v[P. 641–654] _d2019 |
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| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aжирные кислоты | |
| 610 | 1 | _aамидирование | |
| 610 | 1 | _aталловое масло | |
| 701 | 1 |
_aYanovsky _bV. A. _cVyacheslav Aleksandrovich |
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| 701 | 1 |
_aAndropov _bM. O. _cMikhail Olegovich |
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| 701 | 1 |
_aFakhrislamova _bR. S. _cRegina Salavatovna |
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| 701 | 1 |
_aChurkin _bR. A. _cRuslan Aleksandrovich |
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| 701 | 1 |
_aMinaev _bK. M. _cspecialist in the field of oil and gas business _cassociate Professor of Tomsk Polytechnic University, candidate of chemical Sciences _f1982- _gKonstantin Madestovich _2stltpush _3(RuTPU)RU\TPU\pers\32815 |
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| 701 | 1 |
_aYanovskaya _bE. A. _cElena Anatoljevna |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИнженерная школа природных ресурсов _bОтделение нефтегазового дела _h8084 _2stltpush _3(RuTPU)RU\TPU\col\23546 |
| 801 | 2 |
_aRU _b63413507 _c20190702 _gPSBO |
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| 856 | 4 | _uhttps://doi.org/10.1002/jsde.12235 | |
| 942 | _cCF | ||