Inclusion Complex of α-Cyclodextrin with Poly(ethylene glycol) Brush

被引：27
|
作者：
Takahashi, Shoko [1 ]
Yamada, Norifumi L. [2 ]
Ito, Kohzo [1 ]
Yokoyama, Hideaki [1 ]
机构：
[1] Univ Tokyo, Grad Sch Frontier Sci, Chiba 2778561, Japan
[2] High Energy Accelerator Res Org, Ibaraki 3191108, Japan
来源：
MACROMOLECULES | 2016年 / 49卷 / 18期
基金：
日本学术振兴会;
关键词：
GEL;
D O I：
10.1021/acs.macromol.6b01238
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The inclusion complex (IC) of alpha-cyclodextrin (alpha-CD) with poly(ethylene glycol) (PEG) brush was investigated by neutron reflectometry and grazing-incidence wide-angle X-ray scattering. When the PEG brush was exposed to 10% aqueous alpha-CD solution, an IC consisting of randomly oriented alpha- CD polycrystals appeared. On the other hand, when the PEG brush was exposed to 5% aqueous alpha-CD solution, a uniform 10-nm-thick IC layer with alpha-CD stacked perpendicular to the substrate was formed. A 10-nm-thick IC was also found in the diluted PEG brush, even when exposed to the 10% alpha-CD solution. The characteristic 10-nm-thick layer is related to the folded crystalline structure of alpha-CD on the PEG brush.
引用
收藏
页码：6947 / 6952
页数：6
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