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在原生纤维素纳米晶体上进行超合体多价值相互作用,并对登德罗化甘油聚合物进行包装

Johanna Majoinen¹, Johannes S Haataja, Dietmar Appelhans

¹Department of Applied Physics, Molecular Materials, §Department of Forest Products Technology, and ∥Nanomicroscopy Center, Aalto University (formerly Helsinki University of Technology) , FI-00076 Aalto, Espoo, Finland.

Journal of the American Chemical Society

|January 2, 2014

概括

研究人员开发了糖功能化聚合物来控制纤维素纳米晶 (CNC) 自组装. 这种新的超形方法提高了CNC的稳定性,并使新的材料功能成为可能.

科学领域:

材料科学材料科学材料科学
聚合物化学聚合物化学
纳米技术纳米技术

背景情况:

纤维素纳米晶体 (CNCs) 是纳米尺度的棒,具有诸如高机械强度和可持续性等有价值的特性.
控制CNC自组装对于开发先进材料至关重要.
需要新的超状策略来操纵CNC组件.

研究的目的:

探索用于操纵CNC自组装的多价值相互作用.
调查使用带有糖组的树突聚合物 (DenPols) 进行CNC复合的使用.
展示一种创建稳定的合体组件的新方法.

主要方法:

合成带有外围马尔托糖基糖组的登德罗化聚合物 (DenPols).
使用诸如冷传输电子显微镜和电子断层扫描等技术,对DenPol-CNC相互作用进行表征.
通过变化的树突生成来操纵相互作用.

主要成果:

丹波尔与CNC表面有效相互作用,形成稳定的水性合物悬浮液.
第三代DenPol (G3) 显示了与CNC的显著复杂性,围绕着它们.
冷-TEM和电子断层扫描可视化了CNC-DenPol复杂结构.
登德龙的产生影响了多价值相互作用强度.

结论:

由糖功能化树枝介导的多价值相互作用为控制CNC自组装提供了一个强大的策略.
这种方法导致稳定的体数控悬浮,并使得创建新型超体组件成为可能.
这些发现为设计具有量身定制性质的先进材料使用CNC和凝结聚合物打开了道路.

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