Non-Electrostatic Building of Biomimetic Cellulose-Xyloglucan Multilayers

被引：85

作者：

Jean, Bruno ^{[1
]}

Heux, Laurent ^{[1
]}

Dubreuil, Frederic ^{[1
]}

Chambat, Gerard ^{[1
]}

Cousin, Fabrice ^{[2
]}

机构：

[1] Univ Grenoble 1, CNRS, Ctr Rech Macromol Vegetales, CERMAV, F-38041 Grenoble, France

[2] CNRS, CEA, Lab Leon Brillouin, F-91191 Gif Sur Yvette, France

来源：

LANGMUIR | 2009年 / 25卷 / 07期

关键词：

POLYELECTROLYTE MULTILAYERS; MICROFIBRILLATED CELLULOSE; CATIONIC POLYELECTROLYTES; FILMS; SURFACES; ADSORPTION; INTERFACES; POLYMERS;

D O I：

10.1021/la802801q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Layer-by-layer assembly was used to build thin films, consisting of multiple layers alternating cellulose nanocrystals and xyloglucan, benefiting from the strong non-electrostatic cellulose-xyloglucan interaction. Data from atomic force microscopy and neutron reflectivity showed that these well-defined films exhibited a thickness increasing linearly with the number of layers, without increase in surface roughness. These "green" nanocomposite films, reminiscent of plant cell wall, are composed of a regular stack of single layers of cellulose nanocrystals separated by very thin xyloglucan spacers. Such architecture differs from the one formed by cellulose/polycations multilayers, where the cellulose phase itself consists of a double layer.

引用

页码：3920 / 3923

页数：4

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