Adsorption of poly(ethylene oxide)-containing amphiphilic polymers on solid-liquid interfaces: Fundamentals and applications
Adsorption of poly(ethylene oxide)-containing amphiphilic polymers on solid-liquid interfaces: Fundamentals and applications
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DOI：
10.1016/j.cis.2016.09.003
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发表时间：
2017-06-01
影响因子：
15.6
通讯作者：
Alexandridis, Paschalis
中科院分区：
文献类型：
--
作者：
Bodratti, Andrew M.;Sarkar, Biswajit;Alexandridis, Paschalis
不同大小的两亲分子在固液界面上的吸附调节了胶体体系的性质。非离子的基于聚（环氧乙烷）（PEO）的两亲性分子是特别有用的，因为它们的分级疏水-亲水性质，这允许吸附在广泛的固体表面上。它们的吸附还导致其他有用的性质，如对外部刺激的响应性和疏水化合物的增溶。这篇综述的重点是基于PEO的两亲物的吸附性能，开始讨论的基本概念有关的大分子在固液界面上的吸附，更具体地说，PEO均聚物的吸附。主要介绍了影响PEO-PPO-PEO嵌段共聚物吸附和表面自组装的因素，其中PPO为聚环氧丙烷。这种类型的嵌段共聚物是可商购的，并且由于它们的低毒性和在水性体系中的相容性而在若干领域中受到关注。与PEO-PPO-PEO嵌段共聚物的界面行为相关的应用实例是油漆和涂料、洗涤剂、过滤和药物递送。本文所讨论的用于操纵PEO-PPO-PEO的吸附性质的方法强调它们揭示界面处的分子相互作用的能力。这些相互作用的知识指导制定新的材料与有用的介观组织和微观和宏观相的性质。(C)2016爱思唯尔B. V.保留所有权利。
The adsorption of amphiphilic molecules of varying size on solid-liquid interfaces modulates the properties of colloidal systems. Nonionic, poly(ethylene oxide) (PEO)-based amphiphilic molecules are particularly useful because of their graded hydrophobic-hydrophilic nature, which allows for adsorption on a wide array of solid surfaces. Their adsorption also results in other useful properties, such as responsiveness to external stimuli and solubilization of hydrophobic compounds. This review focuses on the adsorption properties of PEO-based amphiphiles, beginning with a discussion of fundamental concepts pertaining to the adsorption of macromolecules on solid-liquid interfaces, and more specifically the adsorption of PEO homopolymers. The main portion of the review highlights studies on factors affecting the adsorption and surface self-assembly of PEO-PPO-PEO block copolymers, where PPO is poly(propylene oxide). Block copolymers of this type are commercially available and of interest in several fields, due to their low toxicity and compatibility in aqueous systems. Examples of applications relevant to the interfacial behavior of PEO-PPO-PEO block copolymers are paints and coatings, detergents, filtration, and drug delivery. The methods discussed herein for manipulating the adsorption properties of PEO-PPO-PEO are emphasized for their ability to shed light on molecular interactions at interfaces. Knowledge of these interactions guides the formulation of novel materials with useful mesoscale organization and micro- and macrophase properties. (C) 2016 Elsevier B.V. All rights reserved.