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题名: Reversible molecular adsorption of free-standing nano-composite film made from boehmite and poly(acrylic acid)
作者: Yuan, Qian1, 2; Zhang, Xuejian1, 2; Gong, Ying1, 2; Ma, Ying3; Xu, Jian4; Yang, Shuguang1, 2
关键词: Layer-by-layer assembly ; Nano-composite film ; Cross-linking ; Free-standing ; Reversible molecular adsorption
刊名: COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
发表日期: 2016-10-20
卷: 507, 页:210-217
收录类别: SCI
英文摘要: A nano-composite film with reversible small molecules adsorption behavior was fabricated via layer-by layer (LbL) assembly of boehmite nano-particles and weak polyelectrolyte poly(acrylic acid) (PAA). Both electrostatic force and hydrogen bonding interaction were involved to fabricate the nano-composite thin film. Boehmite/PAA nano-composite thin film was further cross-linked with thermal treatment, which enhanced the stability of the film. When immersed into the basic solution, the thermal cross-linked film wholly detached from the substrate. And the dynamic cross-links such as hydrogen bonding and electrostatic interaction endowed the free-standing film reversible swelling/shrinking ability in response to pH variations at least five times. Furthermore, the free-standing Boehmite/PAA film showed reversible rhodamine B (RB) adsorption behavior, which could be utilized for controlled loading and releasing. (C) 2016 Elsevier B.V. All rights reserved.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35324
Appears in Collections:高分子物理与化学实验室_期刊论文

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作者单位: 1.Donghua Univ, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China
2.Donghua Univ, Coll Mat Sci & Engn, Shanghai 201620, Peoples R China
3.Donghua Univ, Coll Text, Shanghai 201620, Peoples R China
4.Chinese Acad Sci, Inst Chem, Lab Polymer Phys & Chem, Beijing 100190, Peoples R China
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