螺旋感选择性超分子聚合 通过一手螺旋聚合组件播种
Wei Zhang1,2, Wusong Jin3, Takanori Fukushima4
1RIKEN Center for Emergent Matter Science , 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
Journal of the American Chemical Society
|October 20, 2015
概括
这项研究证明了精确的螺旋纳米管组装. 单手螺旋种子控制复杂的超分子块共聚物的形成,使其能够分离并具有独特的材料特性.
科学领域:
- 超分子化学
- 聚合物科学
- 材料科学
背景情况:
- 构建复杂的分子结构的必不可少的组成部分.
- 在超分子聚合物中控制螺旋感对于先进的材料应用至关重要.
- 现有的螺旋聚合方法往往缺乏对最终结构的精确控制.
研究的目的:
- 开发一种使用螺旋种子进行感觉选择性超分子聚合的方法.
- 创建一个手螺旋纳米管超分子块共聚物与受控螺旋感.
- 调查这种种子聚合方法的奇拉分离能力.
主要方法:
- 双氨酸 (BPY) 附着的阿基拉和奇拉六冠烯 (BPY) 单元的非共价共聚.
- 通过中士和士兵效应形成螺旋式纳米管.
- 使用Cu ((2+) /BPY协调聚合物外稳定纳米管.
- 使用预先形成的螺旋形种子进行化六子 (FHBC) 衍生物的种子超分子聚合.
主要成果:
- 使用单手螺旋纳米管聚合物组件作为种子实现了感性选择性超分子聚合.
- 证明螺旋种子决定了超分子块共聚物中新形成的螺旋部分的感觉.
- 成功地将血质混合物分成具有明显热力学特性的二元体块段.
- 观察到单独的奇拉FHBC衍生物形成没有螺旋种子的不确定的聚合物.
结论:
- 在超分子聚合过程中,螺旋种子可以精确控制螺旋感.
- 这种方法可以构建复杂的单手螺旋纳米管状超分子块共聚物.
- 种子方法提供了一个强大的策略,用于奇拉分离和开发具有定制性质的材料.
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