通过调整线性乙烯基聚合物的悬挂组大小来操纵超分子自我组装
Xiao-Ying Yin1, Chun Ye, Xun Ma
1Department of Polymer Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
Journal of the American Chemical Society
|June 5, 2003
概括
研究人员控制了聚合物的自我组装,通过调整聚[di(alkyl) vinylterephthalates (PDAVTs) 中的侧组大小来控制聚合物的自我组装. 最佳的侧组 (propyl到hexyl) 诱导了2D有序的六边形相,而较大的群体导致了无序的结构.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 超分子化学 超分子化学
背景情况:
- 聚合物自组装对于设计先进材料至关重要.
- 控制聚合物形态会影响材料的特性.
- 聚[基]乙烯基甲酸 (PDAVTs) 为研究自组装提供了一个可调的平台.
研究的目的:
- 为了研究侧组大小对PDAVTs超分子自我组装的影响.
- 建立侧组结构和由此产生的聚合物相之间的关系.
- 在PDAVTs中控制无形和有序相的形成.
主要方法:
- 通过基性聚合合成的多[di(alkyl) 乙烯基甲酸盐 (PDAVTs) 的合成.
- 乙侧组的基链长度的系统变化.
- 聚合物自我组装和相位行为的特征.
主要成果:
- 在PDAVT中微调侧组大小控制的超分子自我组装.
- 通过/异到六侧组实现了2D顺序的六角相.
- 较大的基团 (如多基) 会导致阶段失序.
- 侧面组的绝缘效应影响了脊柱延伸.
结论:
- 侧组工程是一个强大的策略来控制PDAVT自组装和相位行为.
- 特定的基链长度对于诱导液晶和有序相的过程至关重要.
- 这项研究为设计具有量身定制的超分子结构的聚合物提供了洞察力.
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