Hyperbranched fluoropolymer and linear poly(ethylene glycol) based Amphiphilic crosslinked networks as efficient antifouling coatings: An insight into the surface compositions, topographies, and morphologies
Hyperbranched fluoropolymer and linear poly(ethylene glycol) based Amphiphilic crosslinked networks as efficient antifouling coatings: An insight into the surface compositions, topographies, and morphologies
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DOI：
10.1002/pola.20466
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发表时间：
2004-12-15
影响因子：
--
通讯作者：
Wooley, KL
中科院分区：
文献类型：
--
作者：
Gudipati, CS;Greenlief, CM;Wooley, KL
具有不同亲水性，流动性和形貌特征的聚合物涂层，分布在微观和纳米级贴片的基材上，被设计为复杂的材料，其组成，结构和动力学具有足够的可变性，以抑制与生物大分子污染相关的相互作用。通过超支化含氟聚合物（HBFP）和二氨基封端的聚乙二醇（PEG）的混合物的原位相分离和交联制备这些复杂的聚合物涂层，其中通过改变PEG/HBFP化学计量（14、29、45和55重量% PEG）来改变交联度、组合物、形貌和形态。本文探讨的物理化学的细节HBFP-PEG网络涂层制备在玻璃基板上，功能化的3-氨丙基三乙氧基硅烷，其特征在于原子力显微镜（AFM），接触角测量，X射线光电子能谱（XPS），差示扫描量热法（DSC），和热重分析。在水或人工海水中孵育后，表面经历重建，这被认为是由PEG结构域的溶胀和PEG向固体-水界面的分离所提供的能量可渗透性驱动的。(C)2004 Wiley Periodicals，Inc.
Polymer coatings with features of differing hydrophilicity, mobility, and topography, distributed across a substrate in microscopic and nanoscopic patches were designed as complex materials equipped with sufficient variability in composition, structure, and dynamics to inhibit interactions associated with biomacromolecular fouling. These complex polymer coatings were prepared by the in situ phase separation and crosslinking of mixtures of hyperbranched fluoropolymer (HBFP) and diamino-terminated poly(ethylene glycol) (PEG), for which the degree of crosslinking, compositions, topographies, and morphologies were varied by alteration of the PEG/HBFP stoichiometries (14, 29, 45, and 55 wt % PEG). This article examines the physicochemical details of HBFP-PEG network coatings prepared on glass substrates, functionalized by 3-aminopropyltriethoxysilane, as characterized by atomic force microscopy (AFM), contact-angle measurements, X-ray photoelectron spectroscopy (XPS), differential scanning calorimetry (DSC), and thermogravimetric analysis. Upon incubation in water or artificial seawater, the surfaces underwent reconstruction, which was believed to be driven by the swelling of the PEG domains and the energetic favorability offered by the segregation of PEG to the solid-water interface. (C) 2004 Wiley Periodicals, Inc.