Dynamics and Structure of a Bitumen Emulsion as Studied by 1H NMR Diffusometry

被引：2

作者：

Filippov, Andrei ^{[1
]}

Soenen, Hilde ^{[2
]}

Blom, Johan ^{[3
]}

Antzutkin, Oleg N. ^{[1
]}

机构：

[1] Lulea Univ Technol, Dept Civil & Environm Engn, Chem Interfaces, SE-97187 Lulea, Sweden

[2] Nynas NV, B-2020 Antwerp, Belgium

[3] Univ Antwerp, Fac Appl Engn, EMIB Res Grp, B-2020 Antwerp, Belgium

来源：

ACS OMEGA | 2023年 / 8卷 / 39期

基金：

瑞典研究理事会;

关键词：

NMR SELF-DIFFUSION; IN-WATER EMULSIONS; PFG NMR; RESTRICTED DIFFUSION; STIMULATED ECHO; OIL EMULSION; GRADIENT; STABILITY; MOLECULES; DROPLETS;

D O I：

10.1021/acsomega.3c05492

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Self-diffusion in a bitumen emulsion was studied by H-1 NMR. The emulsion forms two phases: continuous and dispersed. The continuous aqueous phase contains mainly water, with the energy of activation of the diffusion process equal to that of bulk water, while its diffusivity is smaller than that of bulk water by a factor of 2. The dispersed phase consists of bitumen droplets containing confined water, whose dynamics is characterized by a fully restricted diffusion regime in cavities with sizes of similar to 0.11 mu m. Therefore, the studied bitumen emulsion can be described by a model of a complex multiple emulsion of the water/oil/water (WOW) type. The suggested model does agree well with data from H-1 NMR spectroscopy and diffusometry of the bitumen emulsion doped with paramagnetic MnSO4(aq) as well as with an additional H-1 NMR study of the emulsion structure, in which emulsion stability was compromised by freezing at 253 K.

引用

页码：36534 / 36542

页数：9

共 50 条

[1] Dynamics of water in agar gels studied using low and high resolution 1H NMR spectroscopy
Davies, Erika
Huang, Yang
Harper, Jason B.
Hook, James M.
Thomas, Donald S.
Burgar, Iko M.
Lillford, Peter J.
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY, 2010, 45 (12): : 2502 - 2507
[2] Analysis of the Hydration Process and Rotational Dynamics of Water in a Nafion Membrane Studied by 1H NMR Spectroscopy
Wakai, Chihiro
Shimoaka, Takafumi
Hasegawa, Takeshi
ANALYTICAL CHEMISTRY, 2013, 85 (15) : 7581 - 7587
[3] Water Structure and Dynamics at a Silica Surface: Pake Doublets in 1H NMR Spectra
Totland, Christian
Steinkopf, Signe
Blokhus, Anne Marit
Nerdal, Willy
LANGMUIR, 2011, 27 (08) : 4690 - 4699
[4] Ion and water mobility in hydrated Li-LSX zeolite studied by 1H, 6Li and 7Li NMR spectroscopy and diffusometry
Freude, D.
Beckert, S.
Stallmach, F.
Kurzhals, R.
Taeschner, D.
Toufar, H.
Kaerger, J.
Haase, J.
MICROPOROUS AND MESOPOROUS MATERIALS, 2013, 172 : 174 - 181
[5] Rapid Quantitative Profiling of Lipid Oxidation Products in a Food Emulsion by 1H NMR
Merkx, Donny W. H.
Hong, G. T. Sophie
Ermacora, Alessia
van Duynhoven, John P. M.
ANALYTICAL CHEMISTRY, 2018, 90 (07) : 4863 - 4870
[6] Diffusivity of crude oils contained in macroporous medium: 1H NMR study
Dvoyashkin, Nariman K.
Filippov, Andrei
MENDELEEV COMMUNICATIONS, 2018, 28 (02) : 222 - 224
[7] Water mobility in acidified milk drinks studied by low-field 1H NMR
Salomonsen, Tina
Tholstrup Sejersen, Marie
Viereck, Nanna
Ipsen, Richard
Balling Engelsen, Soren
INTERNATIONAL DAIRY JOURNAL, 2007, 17 (04) : 294 - 301
[8] Stability and Self-Association of styryl hemicyanine dyes in water studied by 1H NMR spectroscopy
Haese, Constantin
Boecker, Marcel
Vasilev, Aleksey
Mondeshki, Mihail
JOURNAL OF MOLECULAR LIQUIDS, 2022, 352
[9] Properties of small molecular drug loading and diffusion in a fluorinated PEG hydrogel studied by 1H molecular diffusion NMR and 19F spin diffusion NMR
Mathias, Errol V.
Aponte, Julia
Kornfield, Julia A.
Ba, Yong
COLLOID AND POLYMER SCIENCE, 2010, 288 (18) : 1655 - 1663
[10] Calcium-induced structural changes of cartilage proteoglycans studied by 1H NMR relaxometry and diffusion measurements
Werner, A
Gründer, W
MAGNETIC RESONANCE IN MEDICINE, 1999, 41 (01) : 43 - 50

← 1 2 3 4 5 →