Polyelectrolyte Brush(聚电解质刷)研究综述
Polyelectrolyte Brush 聚电解质刷 - More specifically, both the efficiency and the maximum rate of power generation may be increased by densely distributing the polyelectrolyte brushes. [1] Polyelectrolyte brushes have received extensive attention due to their swelling behavior in aqueous solutions, which is a result of their ionic nature and nonelectrostatic (polymer–polymer and poly. [2] At pH = 2, the PDMAEMA is fully charged and the system at high σ behaves as a polyelectrolyte brush with chains protruding in water with a gaussian profile. [3] The effect of binding strength of counterions with the polyelectrolyte chain to the swelling of polyelectrolyte brushes is studied, by investigating the swelling of both the polycation and polyanion in response to the variation of the salt concentration under the change of counterion's identity. [4] Weak polyampholytes and globular proteins among them can be efficiently absorbed from solutions by polyelectrolyte brushes or microgels even if the net charge of the polyampholyte is of the same sign as that of the brush/microgel. [5] ABSTRACT Langevin dynamics (LD) simulations were conducted to study the collapse of polyelectrolyte brushes made of 4-arm stars induced by trivalent salt counterions. [6] PDADMA terminated films show steric forces, chains protrude into the solution and form a pseudobrush, which scales as a polyelectrolyte brush with a low grafting density (1900 nm2 per chain). [7] The capability of polyelectrolyte brushes to spontaneously clean oil fouling via water is determined by factors including water wettability and the self-assembled structures of hydrated polyelectrolytes. [8] Polyelectrolyte brushes are important stimuli-responsive materials in a variety of technological applications as well as in biological systems. [9] In particular, we review our recent studies on the interaction of simple proteins such as human serum albumin (HSA) and lysozyme with linear polyelectrolytes, charged dendrimers, charged networks, and polyelectrolyte brushes. [10] Nanoceria can be modified by surface coating with polyelectrolyte brushes. [11] Polyelectrolyte brushes consist of charged polymer chains attached with one end to a surface at high densities. [12]更具体地，可以通过密集分布聚电解质刷来提高发电效率和最大发电率。 [1] 聚电解质刷因其在水溶液中的溶胀行为而受到广泛关注，这是由于它们的离子性质和非静电（聚合物-聚合物和聚. [2] 在 pH = 2 时，PDMAEMA 完全充电，高 σ 的系统表现为聚电解质刷，其链以高斯分布在水中突出。 [3] 研究了抗衡离子与聚电解质链的结合强度对聚电解质刷溶胀的影响，研究了聚阳离子和聚阴离子在抗衡离子特性变化下响应盐浓度变化的溶胀。 [4] 即使聚电解质的净电荷与刷子/微凝胶的净电荷相同，它们中的弱聚两性电解质和球状蛋白质也可以通过聚电解质刷或微凝胶有效地从溶液中吸收。 [5] 摘要 进行朗之万动力学 (LD) 模拟以研究由三价盐反离子引起的由 4 臂星制成的聚电解质刷的坍塌。 [6] PDADMA 封端的薄膜显示空间力，链伸入溶液中并形成假刷，其缩放为具有低接枝密度（每链 1900 nm2）的聚电解质刷。 [7] 聚电解质刷通过水自发清洁油污的能力取决于水润湿性和水合聚电解质的自组装结构等因素。 [8] 聚电解质刷是各种技术应用以及生物系统中重要的刺激响应材料。 [9] 特别是，我们回顾了我们最近关于简单蛋白质（如人血清白蛋白 (HSA) 和溶菌酶）与线性聚电解质、带电树枝状聚合物、带电网络和聚电解质刷的相互作用的研究。 [10] Nanoceria 可以通过用聚电解质刷进行表面涂层来改性。 [11] 聚电解质刷由一端以高密度连接到表面的带电聚合物链组成。 [12]
Spherical Polyelectrolyte Brush 球形聚电解质刷
By combining small-angle X-ray scattering, wide-angle X-ray scattering, and rheology, the effect of additional polyelectrolyte chains on interactions among spherical polyelectrolyte brushes (SPB) was systematically investigated both on microscopic and macroscopic levels. [1] To address this, we constructed spherical polyelectrolyte brush (SPB) structures with a highly hydrophilic polyelectrolyte brush layer, and introduced them into GO laminates, which increased both the flux and the separation factor. [2] The effect of counterions on interactions among spherical polyelectrolyte brushes (SPBs) was systematically investigated by rheology, small-angle X-ray scattering (SAXS) and wide-angle X-ray scattering (WAXS). [3] Nano-spherical polyelectrolyte brushes (SPBs) have been demonstrated to be versatile objects for many high-tech applications due to their unique microenvironment and impressive stability in aqueous media, showing great prospects in industry. [4] A common used spherical polyelectrolyte brush (SPB), PAA@PS (poly (acrylic acid)) brushes grafted on polystyrene nanospheres, employed in this work as polymeric membrane. [5] A thermodynamic study of the adsorption of Human Serum Albumin (HSA) onto spherical polyelectrolyte brushes (SPBs) by isothermal titration calorimetry (ITC) is presented. [6] Spherical polyelectrolyte brushes (SPBs) could capture some charged nanoparticles, due to the Donnan effect, that have been verified as promising carriers for nanoparticles. [7] Spherical Polyelectrolyte Brushes (SPBs) are nanoparticles formed by densely-grafted polyelectrolyte chains on the surface of colloidal particles. [8]通过结合小角度 X 射线散射、广角 X 射线散射和流变学，在微观和宏观水平上系统地研究了额外的聚电解质链对球形聚电解质刷 (SPB) 之间相互作用的影响。 [1] 为了解决这个问题，我们构建了具有高亲水性聚电解质刷层的球形聚电解质刷 (SPB) 结构，并将它们引入 GO 层压板中，这增加了通量和分离因子。 [2] 通过流变学、小角 X 射线散射 (SAXS) 和广角 X 射线散射 (WAXS) 系统地研究了抗衡离子对球形聚电解质刷 (SPB) 之间相互作用的影响。 [3] 纳米球形聚电解质刷 (SPB) 因其独特的微环境和在水介质中令人印象深刻的稳定性，已被证明是许多高科技应用的多功能物体，在工业上显示出巨大的前景。 [4] 一种常用的球形聚电解质刷（SPB），PAA@PS（聚（丙烯酸））刷接枝在聚苯乙烯纳米球上，在这项工作中用作聚合物膜。 [5] 介绍了通过等温滴定量热法 (ITC) 对球形聚电解质刷 (SPB) 吸附人血清白蛋白 (HSA) 的热力学研究。 [6] 由于唐南效应，球形聚电解质刷 (SPB) 可以捕获一些带电纳米粒子，这些纳米粒子已被证实是纳米粒子的有前途的载体。 [7] 球形聚电解质刷 (SPB) 是由胶体颗粒表面上密集接枝的聚电解质链形成的纳米颗粒。 [8]
Weak Polyelectrolyte Brush
Understanding the structural response of weak polyelectrolyte brushes upon external stimuli is crucial for their applications ranging from modifying surface properties to the development of smart and intelligent materials. [1] Multi-stimulus responsive weak polyelectrolyte brushes were grafted by surface-initiated atom transfer radical polymerization from spherical silica nanoparticles across a wide range of grafting densities approaching the limit of close packing of grafting sites: a regime not previously explored in the brush swelling literature. [2] Adhesion assays to SAMs reveal the complex balance of interactions (electrostatic, van der Waals interactions and hydrogen bonding) regulating the adhesion of weak polyelectrolyte brushes. [3] As a function of solution ionic strength, the osmotic and salted brush regimes of weak polyelectrolyte brushes as well as substantial specific anion effects in the presence of K+ salts of Cl–, NO3–, and SCN– are found. [4]了解弱聚电解质刷对外部刺激的结构响应对于它们的应用至关重要，从改变表面特性到开发智能和智能材料。 [1] 多刺激响应性弱聚电解质刷通过表面引发的原子转移自由基聚合从球形二氧化硅纳米粒子接枝，接枝密度接近接枝位点紧密堆积的极限：以前在刷溶胀文献中没有探索过这种方案。 [2] 对 SAM 的粘附分析揭示了调节弱聚电解质刷粘附的相互作用（静电、范德华相互作用和氢键）的复杂平衡。 [3] 作为溶液离子强度的函数，弱聚电解质刷的渗透和盐刷状态以及在 Cl-、NO3- 和 SCN- 的 K+ 盐存在下显着的特定阴离子效应被发现。 [4]
Strong Polyelectrolyte Brush
In this paper, we have employed a molecular theory to study the pH response of strong polyelectrolyte brushes (SPBs), by considering both strong polyelectrolyte-OH− (P–O) hydrogen bonds and polyelectrolyte-counterions (P–C) bonds and their explicit coupling to the SPB conformation. [1] In this work, poly(sodium styrene sulfonate) brushes have been employed as a precursor to prepare thermosensitive strong polyelectrolyte brushes (SPBs) through a counterion exchange strategy. [2]在本文中，我们采用分子理论来研究强聚电解质刷 (SPB) 的 pH 响应，同时考虑强聚电解质-OH- (P-O) 氢键和聚电解质-反离子 (P-C) 键及其显式耦合到 SPB 构象。 [1] 在这项工作中，聚（苯乙烯磺酸钠）刷子被用作前驱体，通过反离子交换策略制备热敏强聚电解质刷子（SPB）。 [2]
polyelectrolyte brush grafted
In light of this, we systematically study morphologies of bidisperse polyelectrolyte brush grafted onto a spherical nanocolloid in the presence of trivalent counterions using molecular dynamics simulations. [1] We study the morphologies of a polyelectrolyte brush grafted onto a surface of cubic geometry under good solvent conditions in the presence of trivalent counterions, using molecular dynamics simulations. [2]鉴于此，我们使用分子动力学模拟系统地研究了在三价反离子存在下接枝到球形纳米胶体上的双分散聚电解质刷的形态。 [1] 我们使用分子动力学模拟研究了在良好溶剂条件下，在三价反离子存在的情况下，接枝到立方几何表面上的聚电解质刷的形态。 [2]