当前位置: X-MOL 学术J. Mol. Liq. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Prominent temperature-response and salt irritation from self-assemblies of polyzwitterion-sodium lauryl sulfonate
Journal of Molecular Liquids ( IF 5.3 ) Pub Date : 2018-01-11 , DOI: 10.1016/j.molliq.2018.01.059
Shiwei Li , Shaohua Gou , Lihua Zhou , Qin Zhang , Kaiqi Yang , Yuanpeng Wu , Qipeng Guo

Herein, we reported three polyzwitterions: binary one (PAAS) synthesized with acrylamide (AM) and 2-((3-methacrylamidopropyl)dimethylammonio)ethyl sulfite (MAPES), and two ternary (PABA, PADA) with AM, MAPES and benzene sulfonamides. The polyzwitterions were successful synthesized and proved by FT-IR and 1H NMR. TGA analysis provided scientific result about thermal stability, and SEM images revealed bead model microstructure of self-assemblies which was composed of polyzwitterions and sodium lauryl sulfonate (SLS) of 0.5–3.0 g/L. Synergy of hydrogen bonding, hydrophobic association and electrostatic effect from self-assembly systems contributed to higher apparent viscosity (η), lower interfacial tension (IFT), electro-conductibility (σ) and greater peak height from 1H NMR. Exploration for adsorption of SLS by molecular structure and interaction further explained low IFT and electro-conductibility of self-assembly system through D-value of Cps and C[γs] as well as Cs and C[x]. Rheological property test including anti-shear, temperature tolerance, resistance to salt and viscoelasticity revealed that polyzwitterion-SLS 1.0 g/L was remarkable comparing with same series of self-assemblies. Moreover, PABA-SLS-1.0 g/L system demonstrated distinct temperature-responsive performance at 100 °C, 170 s−1 and salt irritation behavior for Na+, Ca2+, Mg2+.



中文翻译:

聚两性离子-月桂基磺酸钠自组装的显着温度响应和盐刺激

在此,我们报道了三种多性两性离子:与丙烯酰胺(AM)和2-((3-甲基丙烯酰胺基丙基)二甲基铵)乙基亚硫酸盐(MAPES)合成的二元一(PAAS),以及与AM,MAPES和苯磺酰胺合成的二元(PABA,PADA)。 。聚两性离子已成功合成,并通过FT-IR和1 H NMR证明。TGA分析提供了有关热稳定性的科学结果,并且SEM图像显示了由两性离子和0.5-3.0 g / L的十二烷基磺酸钠(SLS)组成的自组装珠模型微观结构。自组装系统的氢键,疏水缔合和静电效应的协同作用有助于提高表观粘度(η),降低界面张力(IFT),导电性(σ)和从1开始的更大峰高1 H NMR。勘探由分子结构和相互作用的SLS吸附通过的d值进一步解释低IFT和自组装系统的电传导性Ç PSÇ [ γ小号]以及Ç小号Ç [ X ]。流变性能测试(包括抗剪切性,耐温性,耐盐性和粘弹性)表明,与两套相同的自组装件相比,聚两性离子-SLS 1.0 g / L显着。此外,PABA-SLS-1.0 g / L系统在100°C,170 s -1时表现出独特的温度响应性能,并且对Na +,Ca 2+具有盐分刺激性,镁2+

更新日期:2018-01-11
down
wechat
bug