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Bierwirth SP, Honorio G, Gainaru C, Böhmer R. First-Order and Third-Order Nonlinearities from Medium-Amplitude Oscillatory Shearing of Hydrogen-Bonded Polymers and Other Viscoelastic Materials. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01650] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Gabriel Honorio
- Fakultät Physik, Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - Catalin Gainaru
- Fakultät Physik, Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - Roland Böhmer
- Fakultät Physik, Technische Universität Dortmund, D-44221 Dortmund, Germany
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A new insight into the dependence of relaxation time on frequency in viscoelastic surfactant solutions: From experimental to modeling study. J Colloid Interface Sci 2018; 517:265-277. [DOI: 10.1016/j.jcis.2018.01.078] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 01/19/2018] [Accepted: 01/22/2018] [Indexed: 11/17/2022]
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Niu JL, Li D, Wang LJ, Adhikari B, Chen XD. Synthesis of Carboxymethyl Flaxseed Gum and Study of Nonlinear Rheological Properties of Its Solutions. INTERNATIONAL JOURNAL OF FOOD ENGINEERING 2017. [DOI: 10.1515/ijfe-2017-0185] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract:
Flaxseed gum (FG) was carboxymethylated by reacting it with monochloroacetic acid (MCA). The effects of concentrations of NaOH and MCA, reaction temperature and reaction time, on the degree of substitution (DS) were investigated. Reaction between the FG and MCA at NaOH and MCA concentrations of 0.06 g/mL and 0.08 g/mL, respectively, at 70 °C for 60 min produced carboxymethyl flaxseed gum (CMFG) with a DS of 0.969. Carboxymethylation of FG increased its solubility and light transmittance in water. The nonlinear rheological properties of CMFG solutions were studied using large amplitude oscillatory shear (LAOS) tests, Fourier transform (FT) rheology and Chebyshev stress decomposition methods. The different nonlinear rheological behaviors observed were related to the microstructures of the CMFG solutions as a function of concentration and DS.
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Affiliation(s)
- Jin-lei Niu
- College of Food Science and Nutritional Engineering, Beijing Key Laboratory of Functional Food from Plant Resources , China Agricultural University , P. O. Box 50, 17 Qinghua Donglu , Beijing 100083 , China
| | - Dong Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Engineering, National Energy R & D Center for Non-food Biomass , China Agricultural University , Beijing , China
| | - Li-jun Wang
- College of Food Science and Nutritional Engineering, Beijing Key Laboratory of Functional Food from Plant Resources , China Agricultural University , P. O. Box 50, 17 Qinghua Donglu , Beijing 100083 , China
| | - Benu Adhikari
- School of Applied Sciences , RMIT University , City Campus , Melbourne , VIC 3001 , Australia
| | - Xiao Dong Chen
- School of Chemical and Environmental Engineering , Soochow University , Suzhou , Jiangsu , China
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