Interaction of Dendrimer-Based Polymer with Sodium Dodecyl Benzenesulfonate: Characterization and Effect on Properties of Composites

Lai, Nanjun; Zhang, Yan; Zhou, Qing; Ye, Zhongbin; Wei, Chun; Zeng, Fanhua

doi:10.1021/acs.energyfuels.6b02471

Cited by 6 publications

(7 citation statements)

References 54 publications

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“…With a further increase in the amount of SDBS, the positive charge of QAL is not enough to bind SDBS. The excess SDBS will form a micelle by hydrophobic interaction with SDBS and bind to the surface of QAL . The SDBS/QAL complex system is negatively charged.…”

Section: Resultsmentioning

confidence: 99%

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Modified Lignin with Anionic Surfactant and Its Application in Controlled Release of Avermectin

Yang

et al. 2018

J. Agric. Food Chem.

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Alkali lignin (AL), an anionic polymer, is a byproduct of the paper industry. AL was first modified by quaternization to synthesize quaternized alkali lignin (QAL). The aim of the present study is to reveal the effects of sodium dodecyl benzenesulfonate (SDBS) on the microstructure of QAL. The interaction between SDBS and QAL is studied by means of zeta potential, fluorescence spectrophotometer, and static contact angle measurement. The results indicated that there is an electrostatic interaction and a hydrophobic interaction between QAL and SDBS. The SDBS/QAL complex can self-assemble into lignin-based colloidal spheres (LCSs) in an ethanol/water mixture, which have remarkable avermectin (AVM) encapsulation efficiency and antiphotolysis performance. The cumulative release amount of AVM encapsulated by LCS (LCS@AVM) after 72 h was 77%, and the release was still going on. The release behaviors of LCS@AVM can be controlled by adjusting the ratio (w/w) of LCS to AVM. More than 85% of AVM could be preserved even after 96 h of UV irradiation. LCS showed controlled release and UV-blocking performance for AVM.

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Section: Resultsmentioning

confidence: 99%

“…The excess SDBS will form a micelle by hydrophobic interaction with SDBS and bind to the surface of QAL. 36 The SDBS/QAL complex system is negatively charged. The combined model is shown in the illustration of Figure 1(a).…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Modified Lignin with Anionic Surfactant and Its Application in Controlled Release of Avermectin

Yang

et al. 2018

J. Agric. Food Chem.

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“…However, there are only a few reports on the adsorption mechanism of dendrimers. Some scholars studied the adsorption law and found that the dendrimer/hyperdendrimer polymer static adsorption law conforms to the Langmuir adsorption characteristics and those of a multimolecular layer [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

Adsorption Characteristics of Polymer Solutions on Media Surfaces and Their Main Influencing Factors

Zhu

Liu

et al. 2021

Polymers

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In practical applications, the chemical and physical adsorption of a polymer solution greatly affects its action mode and effect. Understanding the adsorption mechanism and its influencing factors can help to optimize the application mode and ensure application efficiency. Three types of polymer solutions—partially hydrolyzed polyacrylamide (HPAM), hydrophobically associating polymer (AP-P4), and dendrimer hydrophobically associating polymer (DHAP), which are viscoelastic liquids—were used as sorbates to study their adsorption by a sorbent such as quartz sand. The effects of the solution concentration, contact time, particle size of quartz sand, solid–liquid ratio, and fluid movement on the adsorption capacity of the polymer solutions were examined. The results showed that HPAM presents a typical Langmuir monolayer adsorption characteristic, and its adsorption capacity (per unit area) is 1.17–1.62 μg/cm2. The association enhances the interactions of the AP-P4 and DHAP solutions, and they present multilayer characteristics of first-order chemical adsorption and secondary physical molecule adsorption. Moreover, the dendrite structure further increases the adsorption thickness of DHAP. Hence, the adsorption thicknesses of AP-P4 and DHAP are four and six times that of HPAM, respectively. The adsorption of the three polymers is consistent with the influence of fluid motion and decreases with increasing fluid velocity. However, the larger the thickness of the adsorption layer, the clearer the influence of the flow, and the higher the decrease in adsorption capacity. Optimizing the injection rate is an effective method to control the applications of a polymer in porous media.

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“…3−6 However, the increased polymer dosage and extreme sensitivity to external conditions for HPAM make it disappointing from the economic perspective. 7,8 Moreover, polymers with high concentrations enhance chances of remaining in the formation, further causing long-term formation damage. Therefore, an efficient polymer flooding system, which can maintain mobility control ability at lower polymer concentrations, is always desired in oilfield development.…”

Section: Introductionmentioning

confidence: 99%

Interaction of Amphiphilic Polymers with Medium-Chain Fatty Alcohols to Enhance Rheological Performance and Mobility Control Ability

Meng

Gao

et al. 2019

Energy Fuels

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To improve the efficiency of mobility control for polymer flooding, a novel thickening system was formed by adding medium-chain fatty alcohols to hydrophobically modified polyacrylamide (HMPAM) brine solutions. The interaction of HMPAM with fatty alcohols was investigated in terms of rheology properties, aggregate microstructure, and mobility control ability. The results show that n-octanol (C8OH) generates the best synergistic behavior with HMPAM compared to other fatty alcohols. More hydrophobic groups initially existing in either intramolecular or intermolecular association reassemble into larger aggregation structures due to the presence of C8OH. 750 mg·L–1 C8OH could lead to an increase of viscosity by four times as that of individual HMPAM at low polymer concentration (1000 mg·L–1). Owing to the enhancement of the association structure, the HMPAM + C8OH system displays stronger shear-thinning behavior, higher viscoelasticity, and better resistance to salt and temperature. Polymer–brine displacement tests indicate that compared to other systems HMPAM + C8OH exhibits higher effective viscosity and moderate polymer retention in porous media, showing promising applicability in efficient mobility control for low-concentration polymer flooding.

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Interaction of Dendrimer-Based Polymer with Sodium Dodecyl Benzenesulfonate: Characterization and Effect on Properties of Composites

Cited by 6 publications

References 54 publications

Modified Lignin with Anionic Surfactant and Its Application in Controlled Release of Avermectin

Modified Lignin with Anionic Surfactant and Its Application in Controlled Release of Avermectin

Adsorption Characteristics of Polymer Solutions on Media Surfaces and Their Main Influencing Factors

Interaction of Amphiphilic Polymers with Medium-Chain Fatty Alcohols to Enhance Rheological Performance and Mobility Control Ability

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