Starch nanocrystals with large chain surface modifications

被引：173

作者：

Thielemans, W ^{[1
]}

Belgacem, MN ^{[1
]}

Dufresne, A ^{[1
]}

机构：

[1] Inst Natl Polytech Grenoble, Ecole Francaise Papeterie & Ind Graph, F-38402 St Martin Dheres, France

来源：

LANGMUIR | 2006年 / 22卷 / 10期

关键词：

D O I：

10.1021/la053394m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanoscale monocrystalline starch particles were successfully modified using stearic acid chloride and poly(ethylene glycol) methyl ether. Surface modification was confirmed using FTIR, XPS spectroscopy, and contact angle measurements. X-ray diffraction and DSC analysis confirmed that there was no alteration of the starch crystalline structure due to the surface modification. The grafts at the starch surface were also found to crystallize on the surface. TEM showed the individualization of nanoparticles as a result of the reduction of polar and hydrogen bonding forces. These results show our ability to modify the starch nanocrystal surface with plasticizing chains. Modified nanoparticles can find applications as compatibilized polymer additives, surface-active particles, and co-continuous nanocomposite precursors.

引用

页码：4804 / 4810

页数：7

共 29 条

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