Heterogeneous Ultrathin Films of Poly(vinyl alcohol)/Layered Double Hydroxide and Montmorillonite Nanosheets via Layer-by-Layer Assembly

被引：86

作者：

Huang, Shu ^{[1
]}

Cen, Xi ^{[1
]}

Peng, Hongdan ^{[1
]}

Guo, Shuzhong ^{[1
]}

Wang, Weizhi ^{[1
]}

Liu, Tianxi ^{[1
]}

机构：

[1] Fudan Univ, Key Lab Mol Engn Polymers, Minist Educ, Dept Macromol Sci,Lab Adv Mat, Shanghai 200433, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2009年 / 113卷 / 46期

基金：

中国国家自然科学基金;

关键词：

FLAME-RETARDANT; ANION-EXCHANGE; DELAMINATION; CATALYST; CO; OXIDATION; HOST;

D O I：

10.1021/jp907784k

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper, Co-Al layered double hydroxide (LDH) and montmorillonite (MMT) have been exfoliated into charged single layers in the solvent of formamide and water, respectively. The structures of individual layers of LDH and MMT were characterized by X-ray diffraction (XRD) and atomic force microscopy (AFM). The delamination mechanisms of LDH and MMT were also discussed. Furthermore, heterogeneous ultrathin films of poly(vinyl alcohol) (PVA)/charged inorganic nanosheets, (PVA/MMT/PVA/LDH)(n), were fabricated by layer-by-layer (LBL) assembly via hydrogen bonding. The LBL assembly process was monitored by UV-vis spectroscopy, and the structures of the heterogeneous ultrathin films were analyzed by XRD.

引用

页码：15225 / 15230

页数：6

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